Home / 266,386.39-399,579.85-74,253.15

Finding the Fourth Proportional to 266,386.39, 399,579.85 and 74,253.15

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Solution

The fourth proportional to 266,386.39, 399,579.85 and 74,253.15 is: 111,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,386.39 : 399,579.85 = 74,253.15 : x
  2. Step 2: Convert to fraction form
    266,386.39/399,579.85 = 74,253.15/x
  3. Step 3: Cross multiply
    266,386.39x = 399,579.85 × 74,253.15
  4. Step 4: Simplify right side
    266,386.39x = 29,670,060,541.13
  5. Step 5: Solve for x
    x = 29,670,060,541.13/266,386.39
  6. Step 6: Final answer
    x = 111,379.79

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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.