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Finding the Fourth Proportional to 420,560.80, 630,850.06 and 150,706.52

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Solution

The fourth proportional to 420,560.80, 630,850.06 and 150,706.52 is: 226,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,560.80 : 630,850.06 = 150,706.52 : x
  2. Step 2: Convert to fraction form
    420,560.80/630,850.06 = 150,706.52/x
  3. Step 3: Cross multiply
    420,560.80x = 630,850.06 × 150,706.52
  4. Step 4: Simplify right side
    420,560.80x = 95,073,217,184.39
  5. Step 5: Solve for x
    x = 95,073,217,184.39/420,560.80
  6. Step 6: Final answer
    x = 226,062.95

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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.