Home / 203,217.41-280,436.36-112,573.10

Finding the Fourth Proportional to 203,217.41, 280,436.36 and 112,573.10

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Solution

The fourth proportional to 203,217.41, 280,436.36 and 112,573.10 is: 155,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,217.41 : 280,436.36 = 112,573.10 : x
  2. Step 2: Convert to fraction form
    203,217.41/280,436.36 = 112,573.10/x
  3. Step 3: Cross multiply
    203,217.41x = 280,436.36 × 112,573.10
  4. Step 4: Simplify right side
    203,217.41x = 31,569,590,397.92
  5. Step 5: Solve for x
    x = 31,569,590,397.92/203,217.41
  6. Step 6: Final answer
    x = 155,348.85

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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.