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Finding the Fourth Proportional to 149.58, 224.28 and 52.03

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Solution

The fourth proportional to 149.58, 224.28 and 52.03 is: 78.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.58 : 224.28 = 52.03 : x
  2. Step 2: Convert to fraction form
    149.58/224.28 = 52.03/x
  3. Step 3: Cross multiply
    149.58x = 224.28 × 52.03
  4. Step 4: Simplify right side
    149.58x = 11,669.65
  5. Step 5: Solve for x
    x = 11,669.65/149.58
  6. Step 6: Final answer
    x = 78.02

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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.