Home / 214,035.39-321,208.76-172,417.89

Finding the Fourth Proportional to 214,035.39, 321,208.76 and 172,417.89

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Solution

The fourth proportional to 214,035.39, 321,208.76 and 172,417.89 is: 258,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,035.39 : 321,208.76 = 172,417.89 : x
  2. Step 2: Convert to fraction form
    214,035.39/321,208.76 = 172,417.89/x
  3. Step 3: Cross multiply
    214,035.39x = 321,208.76 × 172,417.89
  4. Step 4: Simplify right side
    214,035.39x = 55,382,135,786.63
  5. Step 5: Solve for x
    x = 55,382,135,786.63/214,035.39
  6. Step 6: Final answer
    x = 258,752.24

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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.