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Finding the Fourth Proportional to 615.14, 923.07 and 268.47

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Solution

The fourth proportional to 615.14, 923.07 and 268.47 is: 402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.14 : 923.07 = 268.47 : x
  2. Step 2: Convert to fraction form
    615.14/923.07 = 268.47/x
  3. Step 3: Cross multiply
    615.14x = 923.07 × 268.47
  4. Step 4: Simplify right side
    615.14x = 247,816.60
  5. Step 5: Solve for x
    x = 247,816.60/615.14
  6. Step 6: Final answer
    x = 402.87

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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.