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Finding the Fourth Proportional to 225,914.97, 338,870.64 and 57,435.78

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Solution

The fourth proportional to 225,914.97, 338,870.64 and 57,435.78 is: 86,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,914.97 : 338,870.64 = 57,435.78 : x
  2. Step 2: Convert to fraction form
    225,914.97/338,870.64 = 57,435.78/x
  3. Step 3: Cross multiply
    225,914.97x = 338,870.64 × 57,435.78
  4. Step 4: Simplify right side
    225,914.97x = 19,463,300,690.57
  5. Step 5: Solve for x
    x = 19,463,300,690.57/225,914.97
  6. Step 6: Final answer
    x = 86,153.21

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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.