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Finding the Fourth Proportional to 535.50, 803.79 and 352.17

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Solution

The fourth proportional to 535.50, 803.79 and 352.17 is: 528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.50 : 803.79 = 352.17 : x
  2. Step 2: Convert to fraction form
    535.50/803.79 = 352.17/x
  3. Step 3: Cross multiply
    535.50x = 803.79 × 352.17
  4. Step 4: Simplify right side
    535.50x = 283,070.72
  5. Step 5: Solve for x
    x = 283,070.72/535.50
  6. Step 6: Final answer
    x = 528.61

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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.