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Finding the Fourth Proportional to 110.61, 151.45 and 110.23

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Solution

The fourth proportional to 110.61, 151.45 and 110.23 is: 150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.61 : 151.45 = 110.23 : x
  2. Step 2: Convert to fraction form
    110.61/151.45 = 110.23/x
  3. Step 3: Cross multiply
    110.61x = 151.45 × 110.23
  4. Step 4: Simplify right side
    110.61x = 16,693.19
  5. Step 5: Solve for x
    x = 16,693.19/110.61
  6. Step 6: Final answer
    x = 150.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.