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Finding the Fourth Proportional to 528.30, 792.33 and 158.05

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Solution

The fourth proportional to 528.30, 792.33 and 158.05 is: 237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.30 : 792.33 = 158.05 : x
  2. Step 2: Convert to fraction form
    528.30/792.33 = 158.05/x
  3. Step 3: Cross multiply
    528.30x = 792.33 × 158.05
  4. Step 4: Simplify right side
    528.30x = 125,227.76
  5. Step 5: Solve for x
    x = 125,227.76/528.30
  6. Step 6: Final answer
    x = 237.04

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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.