Home / 281,982.90-389,131.08-159,473.64

Finding the Fourth Proportional to 281,982.90, 389,131.08 and 159,473.64

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Solution

The fourth proportional to 281,982.90, 389,131.08 and 159,473.64 is: 220,070.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,982.90 : 389,131.08 = 159,473.64 : x
  2. Step 2: Convert to fraction form
    281,982.90/389,131.08 = 159,473.64/x
  3. Step 3: Cross multiply
    281,982.90x = 389,131.08 × 159,473.64
  4. Step 4: Simplify right side
    281,982.90x = 62,056,149,764.73
  5. Step 5: Solve for x
    x = 62,056,149,764.73/281,982.90
  6. Step 6: Final answer
    x = 220,070.61

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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.