Home / 259,586.07-389,377.35-139,699.44

Finding the Fourth Proportional to 259,586.07, 389,377.35 and 139,699.44

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Solution

The fourth proportional to 259,586.07, 389,377.35 and 139,699.44 is: 209,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,586.07 : 389,377.35 = 139,699.44 : x
  2. Step 2: Convert to fraction form
    259,586.07/389,377.35 = 139,699.44/x
  3. Step 3: Cross multiply
    259,586.07x = 389,377.35 × 139,699.44
  4. Step 4: Simplify right side
    259,586.07x = 54,395,797,743.68
  5. Step 5: Solve for x
    x = 54,395,797,743.68/259,586.07
  6. Step 6: Final answer
    x = 209,548.22

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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.