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Finding the Fourth Proportional to 473.54, 710.39 and 199.55

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Solution

The fourth proportional to 473.54, 710.39 and 199.55 is: 299.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.54 : 710.39 = 199.55 : x
  2. Step 2: Convert to fraction form
    473.54/710.39 = 199.55/x
  3. Step 3: Cross multiply
    473.54x = 710.39 × 199.55
  4. Step 4: Simplify right side
    473.54x = 141,759.10
  5. Step 5: Solve for x
    x = 141,759.10/473.54
  6. Step 6: Final answer
    x = 299.36

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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.