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Finding the Fourth Proportional to 402.08, 554.77 and 244.79

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Solution

The fourth proportional to 402.08, 554.77 and 244.79 is: 337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.08 : 554.77 = 244.79 : x
  2. Step 2: Convert to fraction form
    402.08/554.77 = 244.79/x
  3. Step 3: Cross multiply
    402.08x = 554.77 × 244.79
  4. Step 4: Simplify right side
    402.08x = 135,798.76
  5. Step 5: Solve for x
    x = 135,798.76/402.08
  6. Step 6: Final answer
    x = 337.74

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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.