Home / 381,327.02-571,991.22-156,530.78

Finding the Fourth Proportional to 381,327.02, 571,991.22 and 156,530.78

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Solution

The fourth proportional to 381,327.02, 571,991.22 and 156,530.78 is: 234,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,327.02 : 571,991.22 = 156,530.78 : x
  2. Step 2: Convert to fraction form
    381,327.02/571,991.22 = 156,530.78/x
  3. Step 3: Cross multiply
    381,327.02x = 571,991.22 × 156,530.78
  4. Step 4: Simplify right side
    381,327.02x = 89,534,228,959.80
  5. Step 5: Solve for x
    x = 89,534,228,959.80/381,327.02
  6. Step 6: Final answer
    x = 234,796.45

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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.