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Finding the Fourth Proportional to 252,044.78, 347,818.59 and 137,328.20

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Solution

The fourth proportional to 252,044.78, 347,818.59 and 137,328.20 is: 189,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,044.78 : 347,818.59 = 137,328.20 : x
  2. Step 2: Convert to fraction form
    252,044.78/347,818.59 = 137,328.20/x
  3. Step 3: Cross multiply
    252,044.78x = 347,818.59 × 137,328.20
  4. Step 4: Simplify right side
    252,044.78x = 47,765,300,891.24
  5. Step 5: Solve for x
    x = 47,765,300,891.24/252,044.78
  6. Step 6: Final answer
    x = 189,511.17

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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.