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Finding the Fourth Proportional to 478.69, 718.03 and 132.03

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Solution

The fourth proportional to 478.69, 718.03 and 132.03 is: 198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478.69 : 718.03 = 132.03 : x
  2. Step 2: Convert to fraction form
    478.69/718.03 = 132.03/x
  3. Step 3: Cross multiply
    478.69x = 718.03 × 132.03
  4. Step 4: Simplify right side
    478.69x = 94,801.50
  5. Step 5: Solve for x
    x = 94,801.50/478.69
  6. Step 6: Final answer
    x = 198.04

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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.