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Finding the Fourth Proportional to 150,473.60, 207,655.92 and 90,046.78

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Solution

The fourth proportional to 150,473.60, 207,655.92 and 90,046.78 is: 124,265.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,473.60 : 207,655.92 = 90,046.78 : x
  2. Step 2: Convert to fraction form
    150,473.60/207,655.92 = 90,046.78/x
  3. Step 3: Cross multiply
    150,473.60x = 207,655.92 × 90,046.78
  4. Step 4: Simplify right side
    150,473.60x = 18,698,746,943.94
  5. Step 5: Solve for x
    x = 18,698,746,943.94/150,473.60
  6. Step 6: Final answer
    x = 124,265.96

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1.5x scale

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.