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Finding the Fourth Proportional to 439,264.89, 658,899.29 and 214,642.98

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Solution

The fourth proportional to 439,264.89, 658,899.29 and 214,642.98 is: 321,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,264.89 : 658,899.29 = 214,642.98 : x
  2. Step 2: Convert to fraction form
    439,264.89/658,899.29 = 214,642.98/x
  3. Step 3: Cross multiply
    439,264.89x = 658,899.29 × 214,642.98
  4. Step 4: Simplify right side
    439,264.89x = 141,428,107,662.09
  5. Step 5: Solve for x
    x = 141,428,107,662.09/439,264.89
  6. Step 6: Final answer
    x = 321,965.43

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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.