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Finding the Fourth Proportional to 234,937.96, 324,066.92 and 139,377

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Solution

The fourth proportional to 234,937.96, 324,066.92 and 139,377 is: 192,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,937.96 : 324,066.92 = 139,377 : x
  2. Step 2: Convert to fraction form
    234,937.96/324,066.92 = 139,377/x
  3. Step 3: Cross multiply
    234,937.96x = 324,066.92 × 139,377
  4. Step 4: Simplify right side
    234,937.96x = 45,167,475,108.84
  5. Step 5: Solve for x
    x = 45,167,475,108.84/234,937.96
  6. Step 6: Final answer
    x = 192,252.78

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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.