Home / 442,965.40-664,010.70-218,141.80

Finding the Fourth Proportional to 442,965.40, 664,010.70 and 218,141.80

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Solution

The fourth proportional to 442,965.40, 664,010.70 and 218,141.80 is: 326,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,965.40 : 664,010.70 = 218,141.80 : x
  2. Step 2: Convert to fraction form
    442,965.40/664,010.70 = 218,141.80/x
  3. Step 3: Cross multiply
    442,965.40x = 664,010.70 × 218,141.80
  4. Step 4: Simplify right side
    442,965.40x = 144,848,489,317.26
  5. Step 5: Solve for x
    x = 144,848,489,317.26/442,965.40
  6. Step 6: Final answer
    x = 326,997.30

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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.