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Finding the Fourth Proportional to 506,132.40, 758,979.90 and 253,315.20

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Solution

The fourth proportional to 506,132.40, 758,979.90 and 253,315.20 is: 379,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,132.40 : 758,979.90 = 253,315.20 : x
  2. Step 2: Convert to fraction form
    506,132.40/758,979.90 = 253,315.20/x
  3. Step 3: Cross multiply
    506,132.40x = 758,979.90 × 253,315.20
  4. Step 4: Simplify right side
    506,132.40x = 192,261,145,164.48
  5. Step 5: Solve for x
    x = 192,261,145,164.48/506,132.40
  6. Step 6: Final answer
    x = 379,863.34

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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.