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Finding the Fourth Proportional to 531.46, 733.38 and 298.54

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Solution

The fourth proportional to 531.46, 733.38 and 298.54 is: 411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.46 : 733.38 = 298.54 : x
  2. Step 2: Convert to fraction form
    531.46/733.38 = 298.54/x
  3. Step 3: Cross multiply
    531.46x = 733.38 × 298.54
  4. Step 4: Simplify right side
    531.46x = 218,943.27
  5. Step 5: Solve for x
    x = 218,943.27/531.46
  6. Step 6: Final answer
    x = 411.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.