Home / 280,141.32-386,579.28-159,265.56

Finding the Fourth Proportional to 280,141.32, 386,579.28 and 159,265.56

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Solution

The fourth proportional to 280,141.32, 386,579.28 and 159,265.56 is: 219,777.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,141.32 : 386,579.28 = 159,265.56 : x
  2. Step 2: Convert to fraction form
    280,141.32/386,579.28 = 159,265.56/x
  3. Step 3: Cross multiply
    280,141.32x = 386,579.28 × 159,265.56
  4. Step 4: Simplify right side
    280,141.32x = 61,568,765,513.60
  5. Step 5: Solve for x
    x = 61,568,765,513.60/280,141.32
  6. Step 6: Final answer
    x = 219,777.52

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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.