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Finding the Fourth Proportional to 440.86, 658.50 and 371.68

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Solution

The fourth proportional to 440.86, 658.50 and 371.68 is: 555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.86 : 658.50 = 371.68 : x
  2. Step 2: Convert to fraction form
    440.86/658.50 = 371.68/x
  3. Step 3: Cross multiply
    440.86x = 658.50 × 371.68
  4. Step 4: Simplify right side
    440.86x = 244,751.28
  5. Step 5: Solve for x
    x = 244,751.28/440.86
  6. Step 6: Final answer
    x = 555.17

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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.