Home / 214,408.26-321,567.24-138,278.76

Finding the Fourth Proportional to 214,408.26, 321,567.24 and 138,278.76

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Solution

The fourth proportional to 214,408.26, 321,567.24 and 138,278.76 is: 207,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,408.26 : 321,567.24 = 138,278.76 : x
  2. Step 2: Convert to fraction form
    214,408.26/321,567.24 = 138,278.76/x
  3. Step 3: Cross multiply
    214,408.26x = 321,567.24 × 138,278.76
  4. Step 4: Simplify right side
    214,408.26x = 44,465,919,203.82
  5. Step 5: Solve for x
    x = 44,465,919,203.82/214,408.26
  6. Step 6: Final answer
    x = 207,389.02

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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.