Home / 325,119.88-448,417.38-279,872.20

Finding the Fourth Proportional to 325,119.88, 448,417.38 and 279,872.20

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Solution

The fourth proportional to 325,119.88, 448,417.38 and 279,872.20 is: 386,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,119.88 : 448,417.38 = 279,872.20 : x
  2. Step 2: Convert to fraction form
    325,119.88/448,417.38 = 279,872.20/x
  3. Step 3: Cross multiply
    325,119.88x = 448,417.38 × 279,872.20
  4. Step 4: Simplify right side
    325,119.88x = 125,499,558,658.84
  5. Step 5: Solve for x
    x = 125,499,558,658.84/325,119.88
  6. Step 6: Final answer
    x = 386,010.10

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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.