Home / 380,486.40-569,563.20-222,244.80

Finding the Fourth Proportional to 380,486.40, 569,563.20 and 222,244.80

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Solution

The fourth proportional to 380,486.40, 569,563.20 and 222,244.80 is: 332,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,486.40 : 569,563.20 = 222,244.80 : x
  2. Step 2: Convert to fraction form
    380,486.40/569,563.20 = 222,244.80/x
  3. Step 3: Cross multiply
    380,486.40x = 569,563.20 × 222,244.80
  4. Step 4: Simplify right side
    380,486.40x = 126,582,459,471.36
  5. Step 5: Solve for x
    x = 126,582,459,471.36/380,486.40
  6. Step 6: Final answer
    x = 332,685.90

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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.