Home / 280,837.53-387,439.20-204,188.04

Finding the Fourth Proportional to 280,837.53, 387,439.20 and 204,188.04

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Solution

The fourth proportional to 280,837.53, 387,439.20 and 204,188.04 is: 281,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,837.53 : 387,439.20 = 204,188.04 : x
  2. Step 2: Convert to fraction form
    280,837.53/387,439.20 = 204,188.04/x
  3. Step 3: Cross multiply
    280,837.53x = 387,439.20 × 204,188.04
  4. Step 4: Simplify right side
    280,837.53x = 79,110,450,867.17
  5. Step 5: Solve for x
    x = 79,110,450,867.17/280,837.53
  6. Step 6: Final answer
    x = 281,694.73

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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.