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Finding the Fourth Proportional to 473.01, 709.30 and 198.91

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Solution

The fourth proportional to 473.01, 709.30 and 198.91 is: 298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.01 : 709.30 = 198.91 : x
  2. Step 2: Convert to fraction form
    473.01/709.30 = 198.91/x
  3. Step 3: Cross multiply
    473.01x = 709.30 × 198.91
  4. Step 4: Simplify right side
    473.01x = 141,086.86
  5. Step 5: Solve for x
    x = 141,086.86/473.01
  6. Step 6: Final answer
    x = 298.27

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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.