Home / 259,415.96-389,242.14-133,144.85

Finding the Fourth Proportional to 259,415.96, 389,242.14 and 133,144.85

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Solution

The fourth proportional to 259,415.96, 389,242.14 and 133,144.85 is: 199,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,415.96 : 389,242.14 = 133,144.85 : x
  2. Step 2: Convert to fraction form
    259,415.96/389,242.14 = 133,144.85/x
  3. Step 3: Cross multiply
    259,415.96x = 389,242.14 × 133,144.85
  4. Step 4: Simplify right side
    259,415.96x = 51,825,584,397.77
  5. Step 5: Solve for x
    x = 51,825,584,397.77/259,415.96
  6. Step 6: Final answer
    x = 199,777.94

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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.