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Finding the Fourth Proportional to 249.92, 377.12 and 239.93

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Solution

The fourth proportional to 249.92, 377.12 and 239.93 is: 362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.92 : 377.12 = 239.93 : x
  2. Step 2: Convert to fraction form
    249.92/377.12 = 239.93/x
  3. Step 3: Cross multiply
    249.92x = 377.12 × 239.93
  4. Step 4: Simplify right side
    249.92x = 90,482.40
  5. Step 5: Solve for x
    x = 90,482.40/249.92
  6. Step 6: Final answer
    x = 362.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.