Home / 425,947.38-638,734.62-159,521.07

Finding the Fourth Proportional to 425,947.38, 638,734.62 and 159,521.07

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Solution

The fourth proportional to 425,947.38, 638,734.62 and 159,521.07 is: 239,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,947.38 : 638,734.62 = 159,521.07 : x
  2. Step 2: Convert to fraction form
    425,947.38/638,734.62 = 159,521.07/x
  3. Step 3: Cross multiply
    425,947.38x = 638,734.62 × 159,521.07
  4. Step 4: Simplify right side
    425,947.38x = 101,891,630,028.44
  5. Step 5: Solve for x
    x = 101,891,630,028.44/425,947.38
  6. Step 6: Final answer
    x = 239,211.78

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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.