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Finding the Fourth Proportional to 657.02, 984.31 and 451.01

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Solution

The fourth proportional to 657.02, 984.31 and 451.01 is: 675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.02 : 984.31 = 451.01 : x
  2. Step 2: Convert to fraction form
    657.02/984.31 = 451.01/x
  3. Step 3: Cross multiply
    657.02x = 984.31 × 451.01
  4. Step 4: Simplify right side
    657.02x = 443,933.65
  5. Step 5: Solve for x
    x = 443,933.65/657.02
  6. Step 6: Final answer
    x = 675.68

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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.