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Finding the Fourth Proportional to 177.17, 264.47 and 162.72

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Solution

The fourth proportional to 177.17, 264.47 and 162.72 is: 242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.17 : 264.47 = 162.72 : x
  2. Step 2: Convert to fraction form
    177.17/264.47 = 162.72/x
  3. Step 3: Cross multiply
    177.17x = 264.47 × 162.72
  4. Step 4: Simplify right side
    177.17x = 43,033.74
  5. Step 5: Solve for x
    x = 43,033.74/177.17
  6. Step 6: Final answer
    x = 242.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.