Home / 214,543.38-321,918.76-88,276.80

Finding the Fourth Proportional to 214,543.38, 321,918.76 and 88,276.80

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Solution

The fourth proportional to 214,543.38, 321,918.76 and 88,276.80 is: 132,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,543.38 : 321,918.76 = 88,276.80 : x
  2. Step 2: Convert to fraction form
    214,543.38/321,918.76 = 88,276.80/x
  3. Step 3: Cross multiply
    214,543.38x = 321,918.76 × 88,276.80
  4. Step 4: Simplify right side
    214,543.38x = 28,417,957,992.77
  5. Step 5: Solve for x
    x = 28,417,957,992.77/214,543.38
  6. Step 6: Final answer
    x = 132,457.86

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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.