Home / 232,915.76-321,435.30-142,257.05

Finding the Fourth Proportional to 232,915.76, 321,435.30 and 142,257.05

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Solution

The fourth proportional to 232,915.76, 321,435.30 and 142,257.05 is: 196,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,915.76 : 321,435.30 = 142,257.05 : x
  2. Step 2: Convert to fraction form
    232,915.76/321,435.30 = 142,257.05/x
  3. Step 3: Cross multiply
    232,915.76x = 321,435.30 × 142,257.05
  4. Step 4: Simplify right side
    232,915.76x = 45,726,437,543.87
  5. Step 5: Solve for x
    x = 45,726,437,543.87/232,915.76
  6. Step 6: Final answer
    x = 196,321.78

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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.