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Finding the Fourth Proportional to 303.59, 455.39 and 98.14

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Solution

The fourth proportional to 303.59, 455.39 and 98.14 is: 147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.59 : 455.39 = 98.14 : x
  2. Step 2: Convert to fraction form
    303.59/455.39 = 98.14/x
  3. Step 3: Cross multiply
    303.59x = 455.39 × 98.14
  4. Step 4: Simplify right side
    303.59x = 44,691.97
  5. Step 5: Solve for x
    x = 44,691.97/303.59
  6. Step 6: Final answer
    x = 147.21

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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.