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Finding the Fourth Proportional to 250,031.69, 345,006.64 and 151,863.88

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Solution

The fourth proportional to 250,031.69, 345,006.64 and 151,863.88 is: 209,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,031.69 : 345,006.64 = 151,863.88 : x
  2. Step 2: Convert to fraction form
    250,031.69/345,006.64 = 151,863.88/x
  3. Step 3: Cross multiply
    250,031.69x = 345,006.64 × 151,863.88
  4. Step 4: Simplify right side
    250,031.69x = 52,394,046,976.16
  5. Step 5: Solve for x
    x = 52,394,046,976.16/250,031.69
  6. Step 6: Final answer
    x = 209,549.63

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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.