Home / 279,983.08-386,409.44-159,142.52

Finding the Fourth Proportional to 279,983.08, 386,409.44 and 159,142.52

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Solution

The fourth proportional to 279,983.08, 386,409.44 and 159,142.52 is: 219,635.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,983.08 : 386,409.44 = 159,142.52 : x
  2. Step 2: Convert to fraction form
    279,983.08/386,409.44 = 159,142.52/x
  3. Step 3: Cross multiply
    279,983.08x = 386,409.44 × 159,142.52
  4. Step 4: Simplify right side
    279,983.08x = 61,494,172,033.39
  5. Step 5: Solve for x
    x = 61,494,172,033.39/279,983.08
  6. Step 6: Final answer
    x = 219,635.32

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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.