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Finding the Fourth Proportional to 565.28, 847.73 and 383.78

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Solution

The fourth proportional to 565.28, 847.73 and 383.78 is: 575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.28 : 847.73 = 383.78 : x
  2. Step 2: Convert to fraction form
    565.28/847.73 = 383.78/x
  3. Step 3: Cross multiply
    565.28x = 847.73 × 383.78
  4. Step 4: Simplify right side
    565.28x = 325,339.90
  5. Step 5: Solve for x
    x = 325,339.90/565.28
  6. Step 6: Final answer
    x = 575.54

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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.