Home / 214,228.40-321,123.90-125,436.20

Finding the Fourth Proportional to 214,228.40, 321,123.90 and 125,436.20

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Solution

The fourth proportional to 214,228.40, 321,123.90 and 125,436.20 is: 188,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,228.40 : 321,123.90 = 125,436.20 : x
  2. Step 2: Convert to fraction form
    214,228.40/321,123.90 = 125,436.20/x
  3. Step 3: Cross multiply
    214,228.40x = 321,123.90 × 125,436.20
  4. Step 4: Simplify right side
    214,228.40x = 40,280,561,745.18
  5. Step 5: Solve for x
    x = 40,280,561,745.18/214,228.40
  6. Step 6: Final answer
    x = 188,026.25

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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.