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Finding the Fourth Proportional to 296,474.38, 444,723.88 and 86,112.32

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Solution

The fourth proportional to 296,474.38, 444,723.88 and 86,112.32 is: 129,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,474.38 : 444,723.88 = 86,112.32 : x
  2. Step 2: Convert to fraction form
    296,474.38/444,723.88 = 86,112.32/x
  3. Step 3: Cross multiply
    296,474.38x = 444,723.88 × 86,112.32
  4. Step 4: Simplify right side
    296,474.38x = 38,296,205,066.20
  5. Step 5: Solve for x
    x = 38,296,205,066.20/296,474.38
  6. Step 6: Final answer
    x = 129,172.05

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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.