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Finding the Fourth Proportional to 244.91, 337.79 and 156.42

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Solution

The fourth proportional to 244.91, 337.79 and 156.42 is: 215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.91 : 337.79 = 156.42 : x
  2. Step 2: Convert to fraction form
    244.91/337.79 = 156.42/x
  3. Step 3: Cross multiply
    244.91x = 337.79 × 156.42
  4. Step 4: Simplify right side
    244.91x = 52,837.11
  5. Step 5: Solve for x
    x = 52,837.11/244.91
  6. Step 6: Final answer
    x = 215.74

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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.