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Finding the Fourth Proportional to 225,593.16, 338,432.42 and 90,667.71

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Solution

The fourth proportional to 225,593.16, 338,432.42 and 90,667.71 is: 136,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,593.16 : 338,432.42 = 90,667.71 : x
  2. Step 2: Convert to fraction form
    225,593.16/338,432.42 = 90,667.71/x
  3. Step 3: Cross multiply
    225,593.16x = 338,432.42 × 90,667.71
  4. Step 4: Simplify right side
    225,593.16x = 30,684,892,511.16
  5. Step 5: Solve for x
    x = 30,684,892,511.16/225,593.16
  6. Step 6: Final answer
    x = 136,018.72

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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.