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Finding the Fourth Proportional to 535.52, 803.46 and 210.98

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Solution

The fourth proportional to 535.52, 803.46 and 210.98 is: 316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.52 : 803.46 = 210.98 : x
  2. Step 2: Convert to fraction form
    535.52/803.46 = 210.98/x
  3. Step 3: Cross multiply
    535.52x = 803.46 × 210.98
  4. Step 4: Simplify right side
    535.52x = 169,513.99
  5. Step 5: Solve for x
    x = 169,513.99/535.52
  6. Step 6: Final answer
    x = 316.54

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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.