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Finding the Fourth Proportional to 229.04, 316.03 and 135.75

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Solution

The fourth proportional to 229.04, 316.03 and 135.75 is: 187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.04 : 316.03 = 135.75 : x
  2. Step 2: Convert to fraction form
    229.04/316.03 = 135.75/x
  3. Step 3: Cross multiply
    229.04x = 316.03 × 135.75
  4. Step 4: Simplify right side
    229.04x = 42,901.07
  5. Step 5: Solve for x
    x = 42,901.07/229.04
  6. Step 6: Final answer
    x = 187.31

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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.