Home / 643,150.06-964,870.89-222,429.58

Finding the Fourth Proportional to 643,150.06, 964,870.89 and 222,429.58

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Solution

The fourth proportional to 643,150.06, 964,870.89 and 222,429.58 is: 333,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,150.06 : 964,870.89 = 222,429.58 : x
  2. Step 2: Convert to fraction form
    643,150.06/964,870.89 = 222,429.58/x
  3. Step 3: Cross multiply
    643,150.06x = 964,870.89 × 222,429.58
  4. Step 4: Simplify right side
    643,150.06x = 214,615,826,816.93
  5. Step 5: Solve for x
    x = 214,615,826,816.93/643,150.06
  6. Step 6: Final answer
    x = 333,694.79

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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.