Home / 379,109.35-568,744.22-142,454.08

Finding the Fourth Proportional to 379,109.35, 568,744.22 and 142,454.08

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Solution

The fourth proportional to 379,109.35, 568,744.22 and 142,454.08 is: 213,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,109.35 : 568,744.22 = 142,454.08 : x
  2. Step 2: Convert to fraction form
    379,109.35/568,744.22 = 142,454.08/x
  3. Step 3: Cross multiply
    379,109.35x = 568,744.22 × 142,454.08
  4. Step 4: Simplify right side
    379,109.35x = 81,019,934,615.42
  5. Step 5: Solve for x
    x = 81,019,934,615.42/379,109.35
  6. Step 6: Final answer
    x = 213,711.25

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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.