Home / 379,531.20-568,858.56-142,722.84

Finding the Fourth Proportional to 379,531.20, 568,858.56 and 142,722.84

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Solution

The fourth proportional to 379,531.20, 568,858.56 and 142,722.84 is: 213,919.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,531.20 : 568,858.56 = 142,722.84 : x
  2. Step 2: Convert to fraction form
    379,531.20/568,858.56 = 142,722.84/x
  3. Step 3: Cross multiply
    379,531.20x = 568,858.56 × 142,722.84
  4. Step 4: Simplify right side
    379,531.20x = 81,189,109,241.51
  5. Step 5: Solve for x
    x = 81,189,109,241.51/379,531.20
  6. Step 6: Final answer
    x = 213,919.46

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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.