Home / 284,540.20-426,810.30-142,822.60

Finding the Fourth Proportional to 284,540.20, 426,810.30 and 142,822.60

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Solution

The fourth proportional to 284,540.20, 426,810.30 and 142,822.60 is: 214,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,540.20 : 426,810.30 = 142,822.60 : x
  2. Step 2: Convert to fraction form
    284,540.20/426,810.30 = 142,822.60/x
  3. Step 3: Cross multiply
    284,540.20x = 426,810.30 × 142,822.60
  4. Step 4: Simplify right side
    284,540.20x = 60,958,156,752.78
  5. Step 5: Solve for x
    x = 60,958,156,752.78/284,540.20
  6. Step 6: Final answer
    x = 214,233.90

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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.