Home / 214,418.84-321,222.29-143,126.51

Finding the Fourth Proportional to 214,418.84, 321,222.29 and 143,126.51

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Solution

The fourth proportional to 214,418.84, 321,222.29 and 143,126.51 is: 214,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,418.84 : 321,222.29 = 143,126.51 : x
  2. Step 2: Convert to fraction form
    214,418.84/321,222.29 = 143,126.51/x
  3. Step 3: Cross multiply
    214,418.84x = 321,222.29 × 143,126.51
  4. Step 4: Simplify right side
    214,418.84x = 45,975,426,462.78
  5. Step 5: Solve for x
    x = 45,975,426,462.78/214,418.84
  6. Step 6: Final answer
    x = 214,418.78

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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.