Home / 215,744.20-324,005.10-208,745.80

Finding the Fourth Proportional to 215,744.20, 324,005.10 and 208,745.80

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Solution

The fourth proportional to 215,744.20, 324,005.10 and 208,745.80 is: 313,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,744.20 : 324,005.10 = 208,745.80 : x
  2. Step 2: Convert to fraction form
    215,744.20/324,005.10 = 208,745.80/x
  3. Step 3: Cross multiply
    215,744.20x = 324,005.10 × 208,745.80
  4. Step 4: Simplify right side
    215,744.20x = 67,634,703,803.58
  5. Step 5: Solve for x
    x = 67,634,703,803.58/215,744.20
  6. Step 6: Final answer
    x = 313,494.89

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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.