Home / 438,588.68-657,839.03-214,104.06

Finding the Fourth Proportional to 438,588.68, 657,839.03 and 214,104.06

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Solution

The fourth proportional to 438,588.68, 657,839.03 and 214,104.06 is: 321,134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,588.68 : 657,839.03 = 214,104.06 : x
  2. Step 2: Convert to fraction form
    438,588.68/657,839.03 = 214,104.06/x
  3. Step 3: Cross multiply
    438,588.68x = 657,839.03 × 214,104.06
  4. Step 4: Simplify right side
    438,588.68x = 140,846,006,078.94
  5. Step 5: Solve for x
    x = 140,846,006,078.94/438,588.68
  6. Step 6: Final answer
    x = 321,134.62

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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.