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Finding the Fourth Proportional to 176.74, 264.95 and 103.68

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Solution

The fourth proportional to 176.74, 264.95 and 103.68 is: 155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.74 : 264.95 = 103.68 : x
  2. Step 2: Convert to fraction form
    176.74/264.95 = 103.68/x
  3. Step 3: Cross multiply
    176.74x = 264.95 × 103.68
  4. Step 4: Simplify right side
    176.74x = 27,470.02
  5. Step 5: Solve for x
    x = 27,470.02/176.74
  6. Step 6: Final answer
    x = 155.43

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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.