Home / 381,819.80-572,729.70-240,102.20

Finding the Fourth Proportional to 381,819.80, 572,729.70 and 240,102.20

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Solution

The fourth proportional to 381,819.80, 572,729.70 and 240,102.20 is: 360,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,819.80 : 572,729.70 = 240,102.20 : x
  2. Step 2: Convert to fraction form
    381,819.80/572,729.70 = 240,102.20/x
  3. Step 3: Cross multiply
    381,819.80x = 572,729.70 × 240,102.20
  4. Step 4: Simplify right side
    381,819.80x = 137,513,660,975.34
  5. Step 5: Solve for x
    x = 137,513,660,975.34/381,819.80
  6. Step 6: Final answer
    x = 360,153.30

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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.