Home / 280,087.25-386,518.58-159,228.57

Finding the Fourth Proportional to 280,087.25, 386,518.58 and 159,228.57

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Solution

The fourth proportional to 280,087.25, 386,518.58 and 159,228.57 is: 219,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,087.25 : 386,518.58 = 159,228.57 : x
  2. Step 2: Convert to fraction form
    280,087.25/386,518.58 = 159,228.57/x
  3. Step 3: Cross multiply
    280,087.25x = 386,518.58 × 159,228.57
  4. Step 4: Simplify right side
    280,087.25x = 61,544,800,743.73
  5. Step 5: Solve for x
    x = 61,544,800,743.73/280,087.25
  6. Step 6: Final answer
    x = 219,734.39

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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.