Home / 259,588.07-389,380.35-139,701.44

Finding the Fourth Proportional to 259,588.07, 389,380.35 and 139,701.44

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Solution

The fourth proportional to 259,588.07, 389,380.35 and 139,701.44 is: 209,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,588.07 : 389,380.35 = 139,701.44 : x
  2. Step 2: Convert to fraction form
    259,588.07/389,380.35 = 139,701.44/x
  3. Step 3: Cross multiply
    259,588.07x = 389,380.35 × 139,701.44
  4. Step 4: Simplify right side
    259,588.07x = 54,396,995,602.70
  5. Step 5: Solve for x
    x = 54,396,995,602.70/259,588.07
  6. Step 6: Final answer
    x = 209,551.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.