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Finding the Fourth Proportional to 445.74, 615.13 and 362.68

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Solution

The fourth proportional to 445.74, 615.13 and 362.68 is: 500.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.74 : 615.13 = 362.68 : x
  2. Step 2: Convert to fraction form
    445.74/615.13 = 362.68/x
  3. Step 3: Cross multiply
    445.74x = 615.13 × 362.68
  4. Step 4: Simplify right side
    445.74x = 223,092.90
  5. Step 5: Solve for x
    x = 223,092.90/445.74
  6. Step 6: Final answer
    x = 500.50

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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.