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Finding the Fourth Proportional to 615.07, 922.35 and 249.76

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Solution

The fourth proportional to 615.07, 922.35 and 249.76 is: 374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.07 : 922.35 = 249.76 : x
  2. Step 2: Convert to fraction form
    615.07/922.35 = 249.76/x
  3. Step 3: Cross multiply
    615.07x = 922.35 × 249.76
  4. Step 4: Simplify right side
    615.07x = 230,366.14
  5. Step 5: Solve for x
    x = 230,366.14/615.07
  6. Step 6: Final answer
    x = 374.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.