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Finding the Fourth Proportional to 184.32, 254.24 and 115.28

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Solution

The fourth proportional to 184.32, 254.24 and 115.28 is: 159.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.32 : 254.24 = 115.28 : x
  2. Step 2: Convert to fraction form
    184.32/254.24 = 115.28/x
  3. Step 3: Cross multiply
    184.32x = 254.24 × 115.28
  4. Step 4: Simplify right side
    184.32x = 29,308.79
  5. Step 5: Solve for x
    x = 29,308.79/184.32
  6. Step 6: Final answer
    x = 159.01

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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.