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Finding the Fourth Proportional to 174.02, 240.03 and 124.74

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Solution

The fourth proportional to 174.02, 240.03 and 124.74 is: 172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.02 : 240.03 = 124.74 : x
  2. Step 2: Convert to fraction form
    174.02/240.03 = 124.74/x
  3. Step 3: Cross multiply
    174.02x = 240.03 × 124.74
  4. Step 4: Simplify right side
    174.02x = 29,941.34
  5. Step 5: Solve for x
    x = 29,941.34/174.02
  6. Step 6: Final answer
    x = 172.06

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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.