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Finding the Fourth Proportional to 347,965.20, 521,947.80 and 170,818.20

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Solution

The fourth proportional to 347,965.20, 521,947.80 and 170,818.20 is: 256,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,965.20 : 521,947.80 = 170,818.20 : x
  2. Step 2: Convert to fraction form
    347,965.20/521,947.80 = 170,818.20/x
  3. Step 3: Cross multiply
    347,965.20x = 521,947.80 × 170,818.20
  4. Step 4: Simplify right side
    347,965.20x = 89,158,183,689.96
  5. Step 5: Solve for x
    x = 89,158,183,689.96/347,965.20
  6. Step 6: Final answer
    x = 256,227.30

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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.