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Finding the Fourth Proportional to 176.77, 265.17 and 105.13

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Solution

The fourth proportional to 176.77, 265.17 and 105.13 is: 157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.77 : 265.17 = 105.13 : x
  2. Step 2: Convert to fraction form
    176.77/265.17 = 105.13/x
  3. Step 3: Cross multiply
    176.77x = 265.17 × 105.13
  4. Step 4: Simplify right side
    176.77x = 27,877.32
  5. Step 5: Solve for x
    x = 27,877.32/176.77
  6. Step 6: Final answer
    x = 157.70

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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.