Home / 280,176.08-386,641.13-159,317.37

Finding the Fourth Proportional to 280,176.08, 386,641.13 and 159,317.37

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Solution

The fourth proportional to 280,176.08, 386,641.13 and 159,317.37 is: 219,856.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,176.08 : 386,641.13 = 159,317.37 : x
  2. Step 2: Convert to fraction form
    280,176.08/386,641.13 = 159,317.37/x
  3. Step 3: Cross multiply
    280,176.08x = 386,641.13 × 159,317.37
  4. Step 4: Simplify right side
    280,176.08x = 61,598,647,168.84
  5. Step 5: Solve for x
    x = 61,598,647,168.84/280,176.08
  6. Step 6: Final answer
    x = 219,856.91

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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.