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Finding the Fourth Proportional to 402.29, 555.03 and 244.87

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Solution

The fourth proportional to 402.29, 555.03 and 244.87 is: 337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.29 : 555.03 = 244.87 : x
  2. Step 2: Convert to fraction form
    402.29/555.03 = 244.87/x
  3. Step 3: Cross multiply
    402.29x = 555.03 × 244.87
  4. Step 4: Simplify right side
    402.29x = 135,910.20
  5. Step 5: Solve for x
    x = 135,910.20/402.29
  6. Step 6: Final answer
    x = 337.84

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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.