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Finding the Fourth Proportional to 423.25, 583.32 and 374.92

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Solution

The fourth proportional to 423.25, 583.32 and 374.92 is: 516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.25 : 583.32 = 374.92 : x
  2. Step 2: Convert to fraction form
    423.25/583.32 = 374.92/x
  3. Step 3: Cross multiply
    423.25x = 583.32 × 374.92
  4. Step 4: Simplify right side
    423.25x = 218,695.42
  5. Step 5: Solve for x
    x = 218,695.42/423.25
  6. Step 6: Final answer
    x = 516.71

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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.