Home / 354,823.38-489,583.17-203,891.22

Finding the Fourth Proportional to 354,823.38, 489,583.17 and 203,891.22

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Solution

The fourth proportional to 354,823.38, 489,583.17 and 203,891.22 is: 281,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,823.38 : 489,583.17 = 203,891.22 : x
  2. Step 2: Convert to fraction form
    354,823.38/489,583.17 = 203,891.22/x
  3. Step 3: Cross multiply
    354,823.38x = 489,583.17 × 203,891.22
  4. Step 4: Simplify right side
    354,823.38x = 99,821,709,822.77
  5. Step 5: Solve for x
    x = 99,821,709,822.77/354,823.38
  6. Step 6: Final answer
    x = 281,327.88

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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.