Home / 425,947.14-638,734.23-159,520.82

Finding the Fourth Proportional to 425,947.14, 638,734.23 and 159,520.82

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Solution

The fourth proportional to 425,947.14, 638,734.23 and 159,520.82 is: 239,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,947.14 : 638,734.23 = 159,520.82 : x
  2. Step 2: Convert to fraction form
    425,947.14/638,734.23 = 159,520.82/x
  3. Step 3: Cross multiply
    425,947.14x = 638,734.23 × 159,520.82
  4. Step 4: Simplify right side
    425,947.14x = 101,891,404,938.00
  5. Step 5: Solve for x
    x = 101,891,404,938.00/425,947.14
  6. Step 6: Final answer
    x = 239,211.38

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1.5x scale

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.