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Finding the Fourth Proportional to 177.93, 266.90 and 117.18

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Solution

The fourth proportional to 177.93, 266.90 and 117.18 is: 175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.93 : 266.90 = 117.18 : x
  2. Step 2: Convert to fraction form
    177.93/266.90 = 117.18/x
  3. Step 3: Cross multiply
    177.93x = 266.90 × 117.18
  4. Step 4: Simplify right side
    177.93x = 31,275.34
  5. Step 5: Solve for x
    x = 31,275.34/177.93
  6. Step 6: Final answer
    x = 175.77

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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.