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Finding the Fourth Proportional to 234,737.56, 323,979.24 and 139,296.88

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Solution

The fourth proportional to 234,737.56, 323,979.24 and 139,296.88 is: 192,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,737.56 : 323,979.24 = 139,296.88 : x
  2. Step 2: Convert to fraction form
    234,737.56/323,979.24 = 139,296.88/x
  3. Step 3: Cross multiply
    234,737.56x = 323,979.24 × 139,296.88
  4. Step 4: Simplify right side
    234,737.56x = 45,129,297,316.77
  5. Step 5: Solve for x
    x = 45,129,297,316.77/234,737.56
  6. Step 6: Final answer
    x = 192,254.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.