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Finding the Fourth Proportional to 292,507.38, 438,761.07 and 70,891.38

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Solution

The fourth proportional to 292,507.38, 438,761.07 and 70,891.38 is: 106,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,507.38 : 438,761.07 = 70,891.38 : x
  2. Step 2: Convert to fraction form
    292,507.38/438,761.07 = 70,891.38/x
  3. Step 3: Cross multiply
    292,507.38x = 438,761.07 × 70,891.38
  4. Step 4: Simplify right side
    292,507.38x = 31,104,377,742.58
  5. Step 5: Solve for x
    x = 31,104,377,742.58/292,507.38
  6. Step 6: Final answer
    x = 106,337.07

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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.