Home / 345,282.78-476,459.91-192,309.42

Finding the Fourth Proportional to 345,282.78, 476,459.91 and 192,309.42

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Solution

The fourth proportional to 345,282.78, 476,459.91 and 192,309.42 is: 265,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,282.78 : 476,459.91 = 192,309.42 : x
  2. Step 2: Convert to fraction form
    345,282.78/476,459.91 = 192,309.42/x
  3. Step 3: Cross multiply
    345,282.78x = 476,459.91 × 192,309.42
  4. Step 4: Simplify right side
    345,282.78x = 91,627,728,945.35
  5. Step 5: Solve for x
    x = 91,627,728,945.35/345,282.78
  6. Step 6: Final answer
    x = 265,370.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.