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Finding the Fourth Proportional to 423.11, 583.97 and 248.46

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Solution

The fourth proportional to 423.11, 583.97 and 248.46 is: 342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.11 : 583.97 = 248.46 : x
  2. Step 2: Convert to fraction form
    423.11/583.97 = 248.46/x
  3. Step 3: Cross multiply
    423.11x = 583.97 × 248.46
  4. Step 4: Simplify right side
    423.11x = 145,093.19
  5. Step 5: Solve for x
    x = 145,093.19/423.11
  6. Step 6: Final answer
    x = 342.92

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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.