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Finding the Fourth Proportional to 175.76, 263.28 and 103.60

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Solution

The fourth proportional to 175.76, 263.28 and 103.60 is: 155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.76 : 263.28 = 103.60 : x
  2. Step 2: Convert to fraction form
    175.76/263.28 = 103.60/x
  3. Step 3: Cross multiply
    175.76x = 263.28 × 103.60
  4. Step 4: Simplify right side
    175.76x = 27,275.81
  5. Step 5: Solve for x
    x = 27,275.81/175.76
  6. Step 6: Final answer
    x = 155.19

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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.