Home / 214,397.28-321,543.63-72,205.54

Finding the Fourth Proportional to 214,397.28, 321,543.63 and 72,205.54

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Solution

The fourth proportional to 214,397.28, 321,543.63 and 72,205.54 is: 108,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,397.28 : 321,543.63 = 72,205.54 : x
  2. Step 2: Convert to fraction form
    214,397.28/321,543.63 = 72,205.54/x
  3. Step 3: Cross multiply
    214,397.28x = 321,543.63 × 72,205.54
  4. Step 4: Simplify right side
    214,397.28x = 23,217,230,633.85
  5. Step 5: Solve for x
    x = 23,217,230,633.85/214,397.28
  6. Step 6: Final answer
    x = 108,290.70

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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.