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Finding the Fourth Proportional to 565.18, 847.78 and 199.98

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Solution

The fourth proportional to 565.18, 847.78 and 199.98 is: 299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.18 : 847.78 = 199.98 : x
  2. Step 2: Convert to fraction form
    565.18/847.78 = 199.98/x
  3. Step 3: Cross multiply
    565.18x = 847.78 × 199.98
  4. Step 4: Simplify right side
    565.18x = 169,539.04
  5. Step 5: Solve for x
    x = 169,539.04/565.18
  6. Step 6: Final answer
    x = 299.97

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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.