Home / 381,730.20-572,595.30-240,012.60

Finding the Fourth Proportional to 381,730.20, 572,595.30 and 240,012.60

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Solution

The fourth proportional to 381,730.20, 572,595.30 and 240,012.60 is: 360,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,730.20 : 572,595.30 = 240,012.60 : x
  2. Step 2: Convert to fraction form
    381,730.20/572,595.30 = 240,012.60/x
  3. Step 3: Cross multiply
    381,730.20x = 572,595.30 × 240,012.60
  4. Step 4: Simplify right side
    381,730.20x = 137,430,086,700.78
  5. Step 5: Solve for x
    x = 137,430,086,700.78/381,730.20
  6. Step 6: Final answer
    x = 360,018.90

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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.