Home / 340,144.90-469,388.20-187,168.79

Finding the Fourth Proportional to 340,144.90, 469,388.20 and 187,168.79

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Solution

The fourth proportional to 340,144.90, 469,388.20 and 187,168.79 is: 258,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,144.90 : 469,388.20 = 187,168.79 : x
  2. Step 2: Convert to fraction form
    340,144.90/469,388.20 = 187,168.79/x
  3. Step 3: Cross multiply
    340,144.90x = 469,388.20 × 187,168.79
  4. Step 4: Simplify right side
    340,144.90x = 87,854,821,434.28
  5. Step 5: Solve for x
    x = 87,854,821,434.28/340,144.90
  6. Step 6: Final answer
    x = 258,286.46

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1.5x scale

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.