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Finding the Fourth Proportional to 244.65, 337.63 and 139.75

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Solution

The fourth proportional to 244.65, 337.63 and 139.75 is: 192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.65 : 337.63 = 139.75 : x
  2. Step 2: Convert to fraction form
    244.65/337.63 = 139.75/x
  3. Step 3: Cross multiply
    244.65x = 337.63 × 139.75
  4. Step 4: Simplify right side
    244.65x = 47,183.79
  5. Step 5: Solve for x
    x = 47,183.79/244.65
  6. Step 6: Final answer
    x = 192.86

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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.