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Finding the Fourth Proportional to 453.32, 625.86 and 348.20

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Solution

The fourth proportional to 453.32, 625.86 and 348.20 is: 480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.32 : 625.86 = 348.20 : x
  2. Step 2: Convert to fraction form
    453.32/625.86 = 348.20/x
  3. Step 3: Cross multiply
    453.32x = 625.86 × 348.20
  4. Step 4: Simplify right side
    453.32x = 217,922.71
  5. Step 5: Solve for x
    x = 217,922.71/453.32
  6. Step 6: Final answer
    x = 480.73

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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.