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Finding the Fourth Proportional to 216,357.94, 324,550.75 and 83,238.21

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Solution

The fourth proportional to 216,357.94, 324,550.75 and 83,238.21 is: 124,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,357.94 : 324,550.75 = 83,238.21 : x
  2. Step 2: Convert to fraction form
    216,357.94/324,550.75 = 83,238.21/x
  3. Step 3: Cross multiply
    216,357.94x = 324,550.75 × 83,238.21
  4. Step 4: Simplify right side
    216,357.94x = 27,015,022,519.33
  5. Step 5: Solve for x
    x = 27,015,022,519.33/216,357.94
  6. Step 6: Final answer
    x = 124,862.64

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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.