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Finding the Fourth Proportional to 458.56, 687.95 and 150.41

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Solution

The fourth proportional to 458.56, 687.95 and 150.41 is: 225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.56 : 687.95 = 150.41 : x
  2. Step 2: Convert to fraction form
    458.56/687.95 = 150.41/x
  3. Step 3: Cross multiply
    458.56x = 687.95 × 150.41
  4. Step 4: Simplify right side
    458.56x = 103,474.56
  5. Step 5: Solve for x
    x = 103,474.56/458.56
  6. Step 6: Final answer
    x = 225.65

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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.