Home / 279,910.08-386,261.94-159,035.40

Finding the Fourth Proportional to 279,910.08, 386,261.94 and 159,035.40

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Solution

The fourth proportional to 279,910.08, 386,261.94 and 159,035.40 is: 219,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,910.08 : 386,261.94 = 159,035.40 : x
  2. Step 2: Convert to fraction form
    279,910.08/386,261.94 = 159,035.40/x
  3. Step 3: Cross multiply
    279,910.08x = 386,261.94 × 159,035.40
  4. Step 4: Simplify right side
    279,910.08x = 61,429,322,132.68
  5. Step 5: Solve for x
    x = 61,429,322,132.68/279,910.08
  6. Step 6: Final answer
    x = 219,460.91

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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.