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Finding the Fourth Proportional to 177.48, 264.74 and 148.77

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Solution

The fourth proportional to 177.48, 264.74 and 148.77 is: 221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.48 : 264.74 = 148.77 : x
  2. Step 2: Convert to fraction form
    177.48/264.74 = 148.77/x
  3. Step 3: Cross multiply
    177.48x = 264.74 × 148.77
  4. Step 4: Simplify right side
    177.48x = 39,385.37
  5. Step 5: Solve for x
    x = 39,385.37/177.48
  6. Step 6: Final answer
    x = 221.91

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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.