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Finding the Fourth Proportional to 266,850.71, 400,275.56 and 86,935.92

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Solution

The fourth proportional to 266,850.71, 400,275.56 and 86,935.92 is: 130,403.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,850.71 : 400,275.56 = 86,935.92 : x
  2. Step 2: Convert to fraction form
    266,850.71/400,275.56 = 86,935.92/x
  3. Step 3: Cross multiply
    266,850.71x = 400,275.56 × 86,935.92
  4. Step 4: Simplify right side
    266,850.71x = 34,798,324,062.12
  5. Step 5: Solve for x
    x = 34,798,324,062.12/266,850.71
  6. Step 6: Final answer
    x = 130,403.72

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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.