Home / 280,267.09-386,766.45-159,408.23

Finding the Fourth Proportional to 280,267.09, 386,766.45 and 159,408.23

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Solution

The fourth proportional to 280,267.09, 386,766.45 and 159,408.23 is: 219,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,267.09 : 386,766.45 = 159,408.23 : x
  2. Step 2: Convert to fraction form
    280,267.09/386,766.45 = 159,408.23/x
  3. Step 3: Cross multiply
    280,267.09x = 386,766.45 × 159,408.23
  4. Step 4: Simplify right side
    280,267.09x = 61,653,753,284.05
  5. Step 5: Solve for x
    x = 61,653,753,284.05/280,267.09
  6. Step 6: Final answer
    x = 219,982.14

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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.