Home / 280,826.68-387,540.36-159,967.90

Finding the Fourth Proportional to 280,826.68, 387,540.36 and 159,967.90

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Solution

The fourth proportional to 280,826.68, 387,540.36 and 159,967.90 is: 220,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,826.68 : 387,540.36 = 159,967.90 : x
  2. Step 2: Convert to fraction form
    280,826.68/387,540.36 = 159,967.90/x
  3. Step 3: Cross multiply
    280,826.68x = 387,540.36 × 159,967.90
  4. Step 4: Simplify right side
    280,826.68x = 61,994,017,554.44
  5. Step 5: Solve for x
    x = 61,994,017,554.44/280,826.68
  6. Step 6: Final answer
    x = 220,755.44

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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.