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Finding the Fourth Proportional to 505,862.10, 758,793.15 and 131,885.10

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Solution

The fourth proportional to 505,862.10, 758,793.15 and 131,885.10 is: 197,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,862.10 : 758,793.15 = 131,885.10 : x
  2. Step 2: Convert to fraction form
    505,862.10/758,793.15 = 131,885.10/x
  3. Step 3: Cross multiply
    505,862.10x = 758,793.15 × 131,885.10
  4. Step 4: Simplify right side
    505,862.10x = 100,073,510,467.07
  5. Step 5: Solve for x
    x = 100,073,510,467.07/505,862.10
  6. Step 6: Final answer
    x = 197,827.65

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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.