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Finding the Fourth Proportional to 174.50, 240.47 and 130.30

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Solution

The fourth proportional to 174.50, 240.47 and 130.30 is: 179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.50 : 240.47 = 130.30 : x
  2. Step 2: Convert to fraction form
    174.50/240.47 = 130.30/x
  3. Step 3: Cross multiply
    174.50x = 240.47 × 130.30
  4. Step 4: Simplify right side
    174.50x = 31,333.21
  5. Step 5: Solve for x
    x = 31,333.21/174.50
  6. Step 6: Final answer
    x = 179.56

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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.