Home / 439,279.20-658,918.80-214,747.20

Finding the Fourth Proportional to 439,279.20, 658,918.80 and 214,747.20

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Solution

The fourth proportional to 439,279.20, 658,918.80 and 214,747.20 is: 322,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,279.20 : 658,918.80 = 214,747.20 : x
  2. Step 2: Convert to fraction form
    439,279.20/658,918.80 = 214,747.20/x
  3. Step 3: Cross multiply
    439,279.20x = 658,918.80 × 214,747.20
  4. Step 4: Simplify right side
    439,279.20x = 141,500,967,327.36
  5. Step 5: Solve for x
    x = 141,500,967,327.36/439,279.20
  6. Step 6: Final answer
    x = 322,120.80

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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.