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Finding the Fourth Proportional to 100,352.40, 150,528.72 and 30,251.76

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Solution

The fourth proportional to 100,352.40, 150,528.72 and 30,251.76 is: 45,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,352.40 : 150,528.72 = 30,251.76 : x
  2. Step 2: Convert to fraction form
    100,352.40/150,528.72 = 30,251.76/x
  3. Step 3: Cross multiply
    100,352.40x = 150,528.72 × 30,251.76
  4. Step 4: Simplify right side
    100,352.40x = 4,553,758,710.55
  5. Step 5: Solve for x
    x = 4,553,758,710.55/100,352.40
  6. Step 6: Final answer
    x = 45,377.68

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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.