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Finding the Fourth Proportional to 528.45, 793.01 and 355.04

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Solution

The fourth proportional to 528.45, 793.01 and 355.04 is: 532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.45 : 793.01 = 355.04 : x
  2. Step 2: Convert to fraction form
    528.45/793.01 = 355.04/x
  3. Step 3: Cross multiply
    528.45x = 793.01 × 355.04
  4. Step 4: Simplify right side
    528.45x = 281,550.27
  5. Step 5: Solve for x
    x = 281,550.27/528.45
  6. Step 6: Final answer
    x = 532.79

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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.