Home / 280,176.08-386,641.13-159,317.33

Finding the Fourth Proportional to 280,176.08, 386,641.13 and 159,317.33

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Solution

The fourth proportional to 280,176.08, 386,641.13 and 159,317.33 is: 219,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,176.08 : 386,641.13 = 159,317.33 : x
  2. Step 2: Convert to fraction form
    280,176.08/386,641.13 = 159,317.33/x
  3. Step 3: Cross multiply
    280,176.08x = 386,641.13 × 159,317.33
  4. Step 4: Simplify right side
    280,176.08x = 61,598,629,769.99
  5. Step 5: Solve for x
    x = 61,598,629,769.99/280,176.08
  6. Step 6: Final answer
    x = 219,856.85

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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.