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Finding the Fourth Proportional to 565.35, 846.90 and 321.18

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Solution

The fourth proportional to 565.35, 846.90 and 321.18 is: 481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.35 : 846.90 = 321.18 : x
  2. Step 2: Convert to fraction form
    565.35/846.90 = 321.18/x
  3. Step 3: Cross multiply
    565.35x = 846.90 × 321.18
  4. Step 4: Simplify right side
    565.35x = 272,007.34
  5. Step 5: Solve for x
    x = 272,007.34/565.35
  6. Step 6: Final answer
    x = 481.13

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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.