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Finding the Fourth Proportional to 325,120.88, 448,418.76 and 279,873.20

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Solution

The fourth proportional to 325,120.88, 448,418.76 and 279,873.20 is: 386,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,120.88 : 448,418.76 = 279,873.20 : x
  2. Step 2: Convert to fraction form
    325,120.88/448,418.76 = 279,873.20/x
  3. Step 3: Cross multiply
    325,120.88x = 448,418.76 × 279,873.20
  4. Step 4: Simplify right side
    325,120.88x = 125,500,393,301.23
  5. Step 5: Solve for x
    x = 125,500,393,301.23/325,120.88
  6. Step 6: Final answer
    x = 386,011.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.