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Finding the Fourth Proportional to 529.10, 792.72 and 323.18

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Solution

The fourth proportional to 529.10, 792.72 and 323.18 is: 484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.10 : 792.72 = 323.18 : x
  2. Step 2: Convert to fraction form
    529.10/792.72 = 323.18/x
  3. Step 3: Cross multiply
    529.10x = 792.72 × 323.18
  4. Step 4: Simplify right side
    529.10x = 256,191.25
  5. Step 5: Solve for x
    x = 256,191.25/529.10
  6. Step 6: Final answer
    x = 484.20

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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.