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Finding the Fourth Proportional to 381,751.52, 572,606.22 and 157,055.09

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Solution

The fourth proportional to 381,751.52, 572,606.22 and 157,055.09 is: 235,573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,751.52 : 572,606.22 = 157,055.09 : x
  2. Step 2: Convert to fraction form
    381,751.52/572,606.22 = 157,055.09/x
  3. Step 3: Cross multiply
    381,751.52x = 572,606.22 × 157,055.09
  4. Step 4: Simplify right side
    381,751.52x = 89,930,721,416.66
  5. Step 5: Solve for x
    x = 89,930,721,416.66/381,751.52
  6. Step 6: Final answer
    x = 235,573.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.