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Finding the Fourth Proportional to 216,067.80, 324,101.70 and 141,272.40

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Solution

The fourth proportional to 216,067.80, 324,101.70 and 141,272.40 is: 211,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,067.80 : 324,101.70 = 141,272.40 : x
  2. Step 2: Convert to fraction form
    216,067.80/324,101.70 = 141,272.40/x
  3. Step 3: Cross multiply
    216,067.80x = 324,101.70 × 141,272.40
  4. Step 4: Simplify right side
    216,067.80x = 45,786,625,003.08
  5. Step 5: Solve for x
    x = 45,786,625,003.08/216,067.80
  6. Step 6: Final answer
    x = 211,908.60

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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.