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Finding the Fourth Proportional to 176.99, 265.24 and 99.79

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Solution

The fourth proportional to 176.99, 265.24 and 99.79 is: 149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.99 : 265.24 = 99.79 : x
  2. Step 2: Convert to fraction form
    176.99/265.24 = 99.79/x
  3. Step 3: Cross multiply
    176.99x = 265.24 × 99.79
  4. Step 4: Simplify right side
    176.99x = 26,468.46
  5. Step 5: Solve for x
    x = 26,468.46/176.99
  6. Step 6: Final answer
    x = 149.55

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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.