Home / 225,817.25-311,641.79-125,215.25

Finding the Fourth Proportional to 225,817.25, 311,641.79 and 125,215.25

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Solution

The fourth proportional to 225,817.25, 311,641.79 and 125,215.25 is: 172,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,817.25 : 311,641.79 = 125,215.25 : x
  2. Step 2: Convert to fraction form
    225,817.25/311,641.79 = 125,215.25/x
  3. Step 3: Cross multiply
    225,817.25x = 311,641.79 × 125,215.25
  4. Step 4: Simplify right side
    225,817.25x = 39,022,302,461.01
  5. Step 5: Solve for x
    x = 39,022,302,461.01/225,817.25
  6. Step 6: Final answer
    x = 172,804.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.