Home / 320,966.70-442,958.79-177,739.98

Finding the Fourth Proportional to 320,966.70, 442,958.79 and 177,739.98

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Solution

The fourth proportional to 320,966.70, 442,958.79 and 177,739.98 is: 245,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,966.70 : 442,958.79 = 177,739.98 : x
  2. Step 2: Convert to fraction form
    320,966.70/442,958.79 = 177,739.98/x
  3. Step 3: Cross multiply
    320,966.70x = 442,958.79 × 177,739.98
  4. Step 4: Simplify right side
    320,966.70x = 78,731,486,475.42
  5. Step 5: Solve for x
    x = 78,731,486,475.42/320,966.70
  6. Step 6: Final answer
    x = 245,294.87

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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.