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Finding the Fourth Proportional to 225.72, 337.87 and 148.50

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Solution

The fourth proportional to 225.72, 337.87 and 148.50 is: 222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.72 : 337.87 = 148.50 : x
  2. Step 2: Convert to fraction form
    225.72/337.87 = 148.50/x
  3. Step 3: Cross multiply
    225.72x = 337.87 × 148.50
  4. Step 4: Simplify right side
    225.72x = 50,173.88
  5. Step 5: Solve for x
    x = 50,173.88/225.72
  6. Step 6: Final answer
    x = 222.28

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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.