Home / 320,904.28-442,847.91-177,673.55

Finding the Fourth Proportional to 320,904.28, 442,847.91 and 177,673.55

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Solution

The fourth proportional to 320,904.28, 442,847.91 and 177,673.55 is: 245,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,904.28 : 442,847.91 = 177,673.55 : x
  2. Step 2: Convert to fraction form
    320,904.28/442,847.91 = 177,673.55/x
  3. Step 3: Cross multiply
    320,904.28x = 442,847.91 × 177,673.55
  4. Step 4: Simplify right side
    320,904.28x = 78,682,360,223.42
  5. Step 5: Solve for x
    x = 78,682,360,223.42/320,904.28
  6. Step 6: Final answer
    x = 245,189.50

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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.