Home / 320,917.56-442,872.60-191,988.96

Finding the Fourth Proportional to 320,917.56, 442,872.60 and 191,988.96

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Solution

The fourth proportional to 320,917.56, 442,872.60 and 191,988.96 is: 264,948.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,917.56 : 442,872.60 = 191,988.96 : x
  2. Step 2: Convert to fraction form
    320,917.56/442,872.60 = 191,988.96/x
  3. Step 3: Cross multiply
    320,917.56x = 442,872.60 × 191,988.96
  4. Step 4: Simplify right side
    320,917.56x = 85,026,649,886.50
  5. Step 5: Solve for x
    x = 85,026,649,886.50/320,917.56
  6. Step 6: Final answer
    x = 264,948.57

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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.