Home / 259,739.93-389,607.40-139,852.91

Finding the Fourth Proportional to 259,739.93, 389,607.40 and 139,852.91

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Solution

The fourth proportional to 259,739.93, 389,607.40 and 139,852.91 is: 209,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,739.93 : 389,607.40 = 139,852.91 : x
  2. Step 2: Convert to fraction form
    259,739.93/389,607.40 = 139,852.91/x
  3. Step 3: Cross multiply
    259,739.93x = 389,607.40 × 139,852.91
  4. Step 4: Simplify right side
    259,739.93x = 54,487,729,796.37
  5. Step 5: Solve for x
    x = 54,487,729,796.37/259,739.93
  6. Step 6: Final answer
    x = 209,778.02

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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.