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Finding the Fourth Proportional to 229.25, 342.56 and 174.10

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Solution

The fourth proportional to 229.25, 342.56 and 174.10 is: 260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.25 : 342.56 = 174.10 : x
  2. Step 2: Convert to fraction form
    229.25/342.56 = 174.10/x
  3. Step 3: Cross multiply
    229.25x = 342.56 × 174.10
  4. Step 4: Simplify right side
    229.25x = 59,639.92
  5. Step 5: Solve for x
    x = 59,639.92/229.25
  6. Step 6: Final answer
    x = 260.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.