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Finding the Fourth Proportional to 249.87, 373.00 and 215.85

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Solution

The fourth proportional to 249.87, 373.00 and 215.85 is: 322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.87 : 373.00 = 215.85 : x
  2. Step 2: Convert to fraction form
    249.87/373.00 = 215.85/x
  3. Step 3: Cross multiply
    249.87x = 373.00 × 215.85
  4. Step 4: Simplify right side
    249.87x = 80,511.51
  5. Step 5: Solve for x
    x = 80,511.51/249.87
  6. Step 6: Final answer
    x = 322.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.