Home / 393,189.75-589,634.75-140,423.04

Finding the Fourth Proportional to 393,189.75, 589,634.75 and 140,423.04

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Solution

The fourth proportional to 393,189.75, 589,634.75 and 140,423.04 is: 210,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,189.75 : 589,634.75 = 140,423.04 : x
  2. Step 2: Convert to fraction form
    393,189.75/589,634.75 = 140,423.04/x
  3. Step 3: Cross multiply
    393,189.75x = 589,634.75 × 140,423.04
  4. Step 4: Simplify right side
    393,189.75x = 82,798,304,435.70
  5. Step 5: Solve for x
    x = 82,798,304,435.70/393,189.75
  6. Step 6: Final answer
    x = 210,581.03

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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.