Home / 643,133.68-964,738.16-216,633.84

Finding the Fourth Proportional to 643,133.68, 964,738.16 and 216,633.84

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Solution

The fourth proportional to 643,133.68, 964,738.16 and 216,633.84 is: 324,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,133.68 : 964,738.16 = 216,633.84 : x
  2. Step 2: Convert to fraction form
    643,133.68/964,738.16 = 216,633.84/x
  3. Step 3: Cross multiply
    643,133.68x = 964,738.16 × 216,633.84
  4. Step 4: Simplify right side
    643,133.68x = 208,994,932,195.33
  5. Step 5: Solve for x
    x = 208,994,932,195.33/643,133.68
  6. Step 6: Final answer
    x = 324,963.44

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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.