Home / 280,198.90-386,675.13-159,337.18

Finding the Fourth Proportional to 280,198.90, 386,675.13 and 159,337.18

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Solution

The fourth proportional to 280,198.90, 386,675.13 and 159,337.18 is: 219,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,198.90 : 386,675.13 = 159,337.18 : x
  2. Step 2: Convert to fraction form
    280,198.90/386,675.13 = 159,337.18/x
  3. Step 3: Cross multiply
    280,198.90x = 386,675.13 × 159,337.18
  4. Step 4: Simplify right side
    280,198.90x = 61,611,724,790.33
  5. Step 5: Solve for x
    x = 61,611,724,790.33/280,198.90
  6. Step 6: Final answer
    x = 219,885.68

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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.