Home / 214,577.78-321,869.10-64,819.31

Finding the Fourth Proportional to 214,577.78, 321,869.10 and 64,819.31

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Solution

The fourth proportional to 214,577.78, 321,869.10 and 64,819.31 is: 97,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,577.78 : 321,869.10 = 64,819.31 : x
  2. Step 2: Convert to fraction form
    214,577.78/321,869.10 = 64,819.31/x
  3. Step 3: Cross multiply
    214,577.78x = 321,869.10 × 64,819.31
  4. Step 4: Simplify right side
    214,577.78x = 20,863,333,234.26
  5. Step 5: Solve for x
    x = 20,863,333,234.26/214,577.78
  6. Step 6: Final answer
    x = 97,229.70

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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.