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Finding the Fourth Proportional to 453.88, 625.80 and 322.66

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Solution

The fourth proportional to 453.88, 625.80 and 322.66 is: 444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.88 : 625.80 = 322.66 : x
  2. Step 2: Convert to fraction form
    453.88/625.80 = 322.66/x
  3. Step 3: Cross multiply
    453.88x = 625.80 × 322.66
  4. Step 4: Simplify right side
    453.88x = 201,920.63
  5. Step 5: Solve for x
    x = 201,920.63/453.88
  6. Step 6: Final answer
    x = 444.88

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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.