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Finding the Fourth Proportional to 261,471.20, 360,891.80 and 159,580.89

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Solution

The fourth proportional to 261,471.20, 360,891.80 and 159,580.89 is: 220,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,471.20 : 360,891.80 = 159,580.89 : x
  2. Step 2: Convert to fraction form
    261,471.20/360,891.80 = 159,580.89/x
  3. Step 3: Cross multiply
    261,471.20x = 360,891.80 × 159,580.89
  4. Step 4: Simplify right side
    261,471.20x = 57,591,433,839.80
  5. Step 5: Solve for x
    x = 57,591,433,839.80/261,471.20
  6. Step 6: Final answer
    x = 220,259.19

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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.