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Finding the Fourth Proportional to 565.40, 848.12 and 195.20

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Solution

The fourth proportional to 565.40, 848.12 and 195.20 is: 292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.40 : 848.12 = 195.20 : x
  2. Step 2: Convert to fraction form
    565.40/848.12 = 195.20/x
  3. Step 3: Cross multiply
    565.40x = 848.12 × 195.20
  4. Step 4: Simplify right side
    565.40x = 165,553.02
  5. Step 5: Solve for x
    x = 165,553.02/565.40
  6. Step 6: Final answer
    x = 292.81

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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.