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Finding the Fourth Proportional to 354,270.69, 531,406.42 and 88,031.21

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Solution

The fourth proportional to 354,270.69, 531,406.42 and 88,031.21 is: 132,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,270.69 : 531,406.42 = 88,031.21 : x
  2. Step 2: Convert to fraction form
    354,270.69/531,406.42 = 88,031.21/x
  3. Step 3: Cross multiply
    354,270.69x = 531,406.42 × 88,031.21
  4. Step 4: Simplify right side
    354,270.69x = 46,780,350,154.37
  5. Step 5: Solve for x
    x = 46,780,350,154.37/354,270.69
  6. Step 6: Final answer
    x = 132,046.91

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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.