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Finding the Fourth Proportional to 177.10, 264.55 and 142.94

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Solution

The fourth proportional to 177.10, 264.55 and 142.94 is: 213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.10 : 264.55 = 142.94 : x
  2. Step 2: Convert to fraction form
    177.10/264.55 = 142.94/x
  3. Step 3: Cross multiply
    177.10x = 264.55 × 142.94
  4. Step 4: Simplify right side
    177.10x = 37,814.78
  5. Step 5: Solve for x
    x = 37,814.78/177.10
  6. Step 6: Final answer
    x = 213.52

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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.