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Finding the Fourth Proportional to 100,371.86, 150,557.91 and 30,251.17

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Solution

The fourth proportional to 100,371.86, 150,557.91 and 30,251.17 is: 45,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,371.86 : 150,557.91 = 30,251.17 : x
  2. Step 2: Convert to fraction form
    100,371.86/150,557.91 = 30,251.17/x
  3. Step 3: Cross multiply
    100,371.86x = 150,557.91 × 30,251.17
  4. Step 4: Simplify right side
    100,371.86x = 4,554,553,005.01
  5. Step 5: Solve for x
    x = 4,554,553,005.01/100,371.86
  6. Step 6: Final answer
    x = 45,376.79

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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.