Home / 321,166.56-442,962.48-193,709.28

Finding the Fourth Proportional to 321,166.56, 442,962.48 and 193,709.28

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Solution

The fourth proportional to 321,166.56, 442,962.48 and 193,709.28 is: 267,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,166.56 : 442,962.48 = 193,709.28 : x
  2. Step 2: Convert to fraction form
    321,166.56/442,962.48 = 193,709.28/x
  3. Step 3: Cross multiply
    321,166.56x = 442,962.48 × 193,709.28
  4. Step 4: Simplify right side
    321,166.56x = 85,805,943,067.81
  5. Step 5: Solve for x
    x = 85,805,943,067.81/321,166.56
  6. Step 6: Final answer
    x = 267,169.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.