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Finding the Fourth Proportional to 615.41, 922.96 and 384.18

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Solution

The fourth proportional to 615.41, 922.96 and 384.18 is: 576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.41 : 922.96 = 384.18 : x
  2. Step 2: Convert to fraction form
    615.41/922.96 = 384.18/x
  3. Step 3: Cross multiply
    615.41x = 922.96 × 384.18
  4. Step 4: Simplify right side
    615.41x = 354,582.77
  5. Step 5: Solve for x
    x = 354,582.77/615.41
  6. Step 6: Final answer
    x = 576.17

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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.