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Finding the Fourth Proportional to 234,234.63, 323,242.31 and 126,803.88

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Solution

The fourth proportional to 234,234.63, 323,242.31 and 126,803.88 is: 174,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,234.63 : 323,242.31 = 126,803.88 : x
  2. Step 2: Convert to fraction form
    234,234.63/323,242.31 = 126,803.88/x
  3. Step 3: Cross multiply
    234,234.63x = 323,242.31 × 126,803.88
  4. Step 4: Simplify right side
    234,234.63x = 40,988,379,405.17
  5. Step 5: Solve for x
    x = 40,988,379,405.17/234,234.63
  6. Step 6: Final answer
    x = 174,988.55

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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.