Home / 280,177.58-386,643.20-159,318.87

Finding the Fourth Proportional to 280,177.58, 386,643.20 and 159,318.87

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Solution

The fourth proportional to 280,177.58, 386,643.20 and 159,318.87 is: 219,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,177.58 : 386,643.20 = 159,318.87 : x
  2. Step 2: Convert to fraction form
    280,177.58/386,643.20 = 159,318.87/x
  3. Step 3: Cross multiply
    280,177.58x = 386,643.20 × 159,318.87
  4. Step 4: Simplify right side
    280,177.58x = 61,599,556,920.59
  5. Step 5: Solve for x
    x = 61,599,556,920.59/280,177.58
  6. Step 6: Final answer
    x = 219,858.98

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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.