Home / 265,561.12-398,341.68-187,321.20

Finding the Fourth Proportional to 265,561.12, 398,341.68 and 187,321.20

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Solution

The fourth proportional to 265,561.12, 398,341.68 and 187,321.20 is: 280,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,561.12 : 398,341.68 = 187,321.20 : x
  2. Step 2: Convert to fraction form
    265,561.12/398,341.68 = 187,321.20/x
  3. Step 3: Cross multiply
    265,561.12x = 398,341.68 × 187,321.20
  4. Step 4: Simplify right side
    265,561.12x = 74,617,841,507.62
  5. Step 5: Solve for x
    x = 74,617,841,507.62/265,561.12
  6. Step 6: Final answer
    x = 280,981.80

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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.