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Finding the Fourth Proportional to 445.66, 615.00 and 249.16

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Solution

The fourth proportional to 445.66, 615.00 and 249.16 is: 343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.66 : 615.00 = 249.16 : x
  2. Step 2: Convert to fraction form
    445.66/615.00 = 249.16/x
  3. Step 3: Cross multiply
    445.66x = 615.00 × 249.16
  4. Step 4: Simplify right side
    445.66x = 153,235.32
  5. Step 5: Solve for x
    x = 153,235.32/445.66
  6. Step 6: Final answer
    x = 343.84

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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.