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Finding the Fourth Proportional to 442,170.66, 610,022.28 and 272,109.54

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Solution

The fourth proportional to 442,170.66, 610,022.28 and 272,109.54 is: 375,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,170.66 : 610,022.28 = 272,109.54 : x
  2. Step 2: Convert to fraction form
    442,170.66/610,022.28 = 272,109.54/x
  3. Step 3: Cross multiply
    442,170.66x = 610,022.28 × 272,109.54
  4. Step 4: Simplify right side
    442,170.66x = 165,992,882,000.55
  5. Step 5: Solve for x
    x = 165,992,882,000.55/442,170.66
  6. Step 6: Final answer
    x = 375,404.56

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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.