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Finding the Fourth Proportional to 187.88, 259.28 and 110.28

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Solution

The fourth proportional to 187.88, 259.28 and 110.28 is: 152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.88 : 259.28 = 110.28 : x
  2. Step 2: Convert to fraction form
    187.88/259.28 = 110.28/x
  3. Step 3: Cross multiply
    187.88x = 259.28 × 110.28
  4. Step 4: Simplify right side
    187.88x = 28,593.40
  5. Step 5: Solve for x
    x = 28,593.40/187.88
  6. Step 6: Final answer
    x = 152.19

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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.