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Finding the Fourth Proportional to 440.74, 659.67 and 372.34

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Solution

The fourth proportional to 440.74, 659.67 and 372.34 is: 557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.74 : 659.67 = 372.34 : x
  2. Step 2: Convert to fraction form
    440.74/659.67 = 372.34/x
  3. Step 3: Cross multiply
    440.74x = 659.67 × 372.34
  4. Step 4: Simplify right side
    440.74x = 245,621.53
  5. Step 5: Solve for x
    x = 245,621.53/440.74
  6. Step 6: Final answer
    x = 557.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.