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Finding the Fourth Proportional to 109.60, 151.27 and 62.98

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Solution

The fourth proportional to 109.60, 151.27 and 62.98 is: 86.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.60 : 151.27 = 62.98 : x
  2. Step 2: Convert to fraction form
    109.60/151.27 = 62.98/x
  3. Step 3: Cross multiply
    109.60x = 151.27 × 62.98
  4. Step 4: Simplify right side
    109.60x = 9,527.65
  5. Step 5: Solve for x
    x = 9,527.65/109.60
  6. Step 6: Final answer
    x = 86.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.