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Finding the Fourth Proportional to 440.92, 660.18 and 368.92

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Solution

The fourth proportional to 440.92, 660.18 and 368.92 is: 552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.92 : 660.18 = 368.92 : x
  2. Step 2: Convert to fraction form
    440.92/660.18 = 368.92/x
  3. Step 3: Cross multiply
    440.92x = 660.18 × 368.92
  4. Step 4: Simplify right side
    440.92x = 243,553.61
  5. Step 5: Solve for x
    x = 243,553.61/440.92
  6. Step 6: Final answer
    x = 552.38

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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.