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Finding the Fourth Proportional to 225,591.66, 338,430.17 and 90,666.21

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Solution

The fourth proportional to 225,591.66, 338,430.17 and 90,666.21 is: 136,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,591.66 : 338,430.17 = 90,666.21 : x
  2. Step 2: Convert to fraction form
    225,591.66/338,430.17 = 90,666.21/x
  3. Step 3: Cross multiply
    225,591.66x = 338,430.17 × 90,666.21
  4. Step 4: Simplify right side
    225,591.66x = 30,684,180,863.56
  5. Step 5: Solve for x
    x = 30,684,180,863.56/225,591.66
  6. Step 6: Final answer
    x = 136,016.47

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1.5x scale

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.