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Finding the Fourth Proportional to 149.92, 224.53 and 117.15

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Solution

The fourth proportional to 149.92, 224.53 and 117.15 is: 175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.92 : 224.53 = 117.15 : x
  2. Step 2: Convert to fraction form
    149.92/224.53 = 117.15/x
  3. Step 3: Cross multiply
    149.92x = 224.53 × 117.15
  4. Step 4: Simplify right side
    149.92x = 26,303.69
  5. Step 5: Solve for x
    x = 26,303.69/149.92
  6. Step 6: Final answer
    x = 175.46

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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.