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Finding the Fourth Proportional to 531.77, 798.15 and 288.46

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Solution

The fourth proportional to 531.77, 798.15 and 288.46 is: 432.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.77 : 798.15 = 288.46 : x
  2. Step 2: Convert to fraction form
    531.77/798.15 = 288.46/x
  3. Step 3: Cross multiply
    531.77x = 798.15 × 288.46
  4. Step 4: Simplify right side
    531.77x = 230,236.43
  5. Step 5: Solve for x
    x = 230,236.43/531.77
  6. Step 6: Final answer
    x = 432.97

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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.