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Finding the Fourth Proportional to 511,403.92, 767,105.24 and 137,426.96

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Solution

The fourth proportional to 511,403.92, 767,105.24 and 137,426.96 is: 206,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,403.92 : 767,105.24 = 137,426.96 : x
  2. Step 2: Convert to fraction form
    511,403.92/767,105.24 = 137,426.96/x
  3. Step 3: Cross multiply
    511,403.92x = 767,105.24 × 137,426.96
  4. Step 4: Simplify right side
    511,403.92x = 105,420,941,133.27
  5. Step 5: Solve for x
    x = 105,420,941,133.27/511,403.92
  6. Step 6: Final answer
    x = 206,140.27

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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.