Home / 259,221.75-388,985.72-109,452.35

Finding the Fourth Proportional to 259,221.75, 388,985.72 and 109,452.35

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Solution

The fourth proportional to 259,221.75, 388,985.72 and 109,452.35 is: 164,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,221.75 : 388,985.72 = 109,452.35 : x
  2. Step 2: Convert to fraction form
    259,221.75/388,985.72 = 109,452.35/x
  3. Step 3: Cross multiply
    259,221.75x = 388,985.72 × 109,452.35
  4. Step 4: Simplify right side
    259,221.75x = 42,575,401,170.44
  5. Step 5: Solve for x
    x = 42,575,401,170.44/259,221.75
  6. Step 6: Final answer
    x = 164,243.17

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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.