Home / 381,276.48-571,542.84-181,543.20

Finding the Fourth Proportional to 381,276.48, 571,542.84 and 181,543.20

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Solution

The fourth proportional to 381,276.48, 571,542.84 and 181,543.20 is: 272,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,276.48 : 571,542.84 = 181,543.20 : x
  2. Step 2: Convert to fraction form
    381,276.48/571,542.84 = 181,543.20/x
  3. Step 3: Cross multiply
    381,276.48x = 571,542.84 × 181,543.20
  4. Step 4: Simplify right side
    381,276.48x = 103,759,716,110.69
  5. Step 5: Solve for x
    x = 103,759,716,110.69/381,276.48
  6. Step 6: Final answer
    x = 272,137.73

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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.