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Finding the Fourth Proportional to 342,167.52, 472,190.28 and 187,118.88

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Solution

The fourth proportional to 342,167.52, 472,190.28 and 187,118.88 is: 258,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,167.52 : 472,190.28 = 187,118.88 : x
  2. Step 2: Convert to fraction form
    342,167.52/472,190.28 = 187,118.88/x
  3. Step 3: Cross multiply
    342,167.52x = 472,190.28 × 187,118.88
  4. Step 4: Simplify right side
    342,167.52x = 88,355,716,340.49
  5. Step 5: Solve for x
    x = 88,355,716,340.49/342,167.52
  6. Step 6: Final answer
    x = 258,223.56

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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.