Home / 214,190.10-321,285.15-131,246.10

Finding the Fourth Proportional to 214,190.10, 321,285.15 and 131,246.10

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Solution

The fourth proportional to 214,190.10, 321,285.15 and 131,246.10 is: 196,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,190.10 : 321,285.15 = 131,246.10 : x
  2. Step 2: Convert to fraction form
    214,190.10/321,285.15 = 131,246.10/x
  3. Step 3: Cross multiply
    214,190.10x = 321,285.15 × 131,246.10
  4. Step 4: Simplify right side
    214,190.10x = 42,167,422,925.42
  5. Step 5: Solve for x
    x = 42,167,422,925.42/214,190.10
  6. Step 6: Final answer
    x = 196,869.15

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Double scale
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Similar ratio
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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.