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Finding the Fourth Proportional to 506,487.40, 759,731.10 and 132,510.40

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Solution

The fourth proportional to 506,487.40, 759,731.10 and 132,510.40 is: 198,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,487.40 : 759,731.10 = 132,510.40 : x
  2. Step 2: Convert to fraction form
    506,487.40/759,731.10 = 132,510.40/x
  3. Step 3: Cross multiply
    506,487.40x = 759,731.10 × 132,510.40
  4. Step 4: Simplify right side
    506,487.40x = 100,672,271,953.44
  5. Step 5: Solve for x
    x = 100,672,271,953.44/506,487.40
  6. Step 6: Final answer
    x = 198,765.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.