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Finding the Fourth Proportional to 615.27, 848.84 and 382.53

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Solution

The fourth proportional to 615.27, 848.84 and 382.53 is: 527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.27 : 848.84 = 382.53 : x
  2. Step 2: Convert to fraction form
    615.27/848.84 = 382.53/x
  3. Step 3: Cross multiply
    615.27x = 848.84 × 382.53
  4. Step 4: Simplify right side
    615.27x = 324,704.85
  5. Step 5: Solve for x
    x = 324,704.85/615.27
  6. Step 6: Final answer
    x = 527.74

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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.