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Finding the Fourth Proportional to 607.18, 908 and 453.22

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Solution

The fourth proportional to 607.18, 908 and 453.22 is: 677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.18 : 908 = 453.22 : x
  2. Step 2: Convert to fraction form
    607.18/908 = 453.22/x
  3. Step 3: Cross multiply
    607.18x = 908 × 453.22
  4. Step 4: Simplify right side
    607.18x = 411,523.76
  5. Step 5: Solve for x
    x = 411,523.76/607.18
  6. Step 6: Final answer
    x = 677.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.