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Finding the Fourth Proportional to 437,689.39, 656,287.83 and 138,114.13

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Solution

The fourth proportional to 437,689.39, 656,287.83 and 138,114.13 is: 207,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,689.39 : 656,287.83 = 138,114.13 : x
  2. Step 2: Convert to fraction form
    437,689.39/656,287.83 = 138,114.13/x
  3. Step 3: Cross multiply
    437,689.39x = 656,287.83 × 138,114.13
  4. Step 4: Simplify right side
    437,689.39x = 90,642,622,670.04
  5. Step 5: Solve for x
    x = 90,642,622,670.04/437,689.39
  6. Step 6: Final answer
    x = 207,093.49

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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.