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Finding the Fourth Proportional to 474.87, 712.43 and 150.24

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Solution

The fourth proportional to 474.87, 712.43 and 150.24 is: 225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.87 : 712.43 = 150.24 : x
  2. Step 2: Convert to fraction form
    474.87/712.43 = 150.24/x
  3. Step 3: Cross multiply
    474.87x = 712.43 × 150.24
  4. Step 4: Simplify right side
    474.87x = 107,034.73
  5. Step 5: Solve for x
    x = 107,034.73/474.87
  6. Step 6: Final answer
    x = 225.40

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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.