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Finding the Fourth Proportional to 244.79, 337.80 and 139.85

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Solution

The fourth proportional to 244.79, 337.80 and 139.85 is: 192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.79 : 337.80 = 139.85 : x
  2. Step 2: Convert to fraction form
    244.79/337.80 = 139.85/x
  3. Step 3: Cross multiply
    244.79x = 337.80 × 139.85
  4. Step 4: Simplify right side
    244.79x = 47,241.33
  5. Step 5: Solve for x
    x = 47,241.33/244.79
  6. Step 6: Final answer
    x = 192.99

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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.