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Finding the Fourth Proportional to 453.17, 625.47 and 379.35

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Solution

The fourth proportional to 453.17, 625.47 and 379.35 is: 523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.17 : 625.47 = 379.35 : x
  2. Step 2: Convert to fraction form
    453.17/625.47 = 379.35/x
  3. Step 3: Cross multiply
    453.17x = 625.47 × 379.35
  4. Step 4: Simplify right side
    453.17x = 237,272.04
  5. Step 5: Solve for x
    x = 237,272.04/453.17
  6. Step 6: Final answer
    x = 523.59

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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.