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Finding the Fourth Proportional to 473.64, 710.45 and 199.59

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Solution

The fourth proportional to 473.64, 710.45 and 199.59 is: 299.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.64 : 710.45 = 199.59 : x
  2. Step 2: Convert to fraction form
    473.64/710.45 = 199.59/x
  3. Step 3: Cross multiply
    473.64x = 710.45 × 199.59
  4. Step 4: Simplify right side
    473.64x = 141,798.72
  5. Step 5: Solve for x
    x = 141,798.72/473.64
  6. Step 6: Final answer
    x = 299.38

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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.