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Finding the Fourth Proportional to 150,217.66, 207,298.47 and 90,601.66

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Solution

The fourth proportional to 150,217.66, 207,298.47 and 90,601.66 is: 125,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,217.66 : 207,298.47 = 90,601.66 : x
  2. Step 2: Convert to fraction form
    150,217.66/207,298.47 = 90,601.66/x
  3. Step 3: Cross multiply
    150,217.66x = 207,298.47 × 90,601.66
  4. Step 4: Simplify right side
    150,217.66x = 18,781,585,497.46
  5. Step 5: Solve for x
    x = 18,781,585,497.46/150,217.66
  6. Step 6: Final answer
    x = 125,029.14

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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.