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Finding the Fourth Proportional to 473.88, 710.86 and 144.79

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Solution

The fourth proportional to 473.88, 710.86 and 144.79 is: 217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.88 : 710.86 = 144.79 : x
  2. Step 2: Convert to fraction form
    473.88/710.86 = 144.79/x
  3. Step 3: Cross multiply
    473.88x = 710.86 × 144.79
  4. Step 4: Simplify right side
    473.88x = 102,923.55
  5. Step 5: Solve for x
    x = 102,923.55/473.88
  6. Step 6: Final answer
    x = 217.19

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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.