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Finding the Fourth Proportional to 234,718.56, 323,953.02 and 139,277.88

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Solution

The fourth proportional to 234,718.56, 323,953.02 and 139,277.88 is: 192,228.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,718.56 : 323,953.02 = 139,277.88 : x
  2. Step 2: Convert to fraction form
    234,718.56/323,953.02 = 139,277.88/x
  3. Step 3: Cross multiply
    234,718.56x = 323,953.02 × 139,277.88
  4. Step 4: Simplify right side
    234,718.56x = 45,119,489,845.20
  5. Step 5: Solve for x
    x = 45,119,489,845.20/234,718.56
  6. Step 6: Final answer
    x = 192,228.04

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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.