Home / 214,035.89-321,209.51-172,418.39

Finding the Fourth Proportional to 214,035.89, 321,209.51 and 172,418.39

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Solution

The fourth proportional to 214,035.89, 321,209.51 and 172,418.39 is: 258,752.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,035.89 : 321,209.51 = 172,418.39 : x
  2. Step 2: Convert to fraction form
    214,035.89/321,209.51 = 172,418.39/x
  3. Step 3: Cross multiply
    214,035.89x = 321,209.51 × 172,418.39
  4. Step 4: Simplify right side
    214,035.89x = 55,382,425,704.80
  5. Step 5: Solve for x
    x = 55,382,425,704.80/214,035.89
  6. Step 6: Final answer
    x = 258,752.99

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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.