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Finding the Fourth Proportional to 177.06, 264.99 and 147.90

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Solution

The fourth proportional to 177.06, 264.99 and 147.90 is: 221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.06 : 264.99 = 147.90 : x
  2. Step 2: Convert to fraction form
    177.06/264.99 = 147.90/x
  3. Step 3: Cross multiply
    177.06x = 264.99 × 147.90
  4. Step 4: Simplify right side
    177.06x = 39,192.02
  5. Step 5: Solve for x
    x = 39,192.02/177.06
  6. Step 6: Final answer
    x = 221.35

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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.