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Finding the Fourth Proportional to 225,911.58, 311,759.19 and 125,309.58

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Solution

The fourth proportional to 225,911.58, 311,759.19 and 125,309.58 is: 172,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,911.58 : 311,759.19 = 125,309.58 : x
  2. Step 2: Convert to fraction form
    225,911.58/311,759.19 = 125,309.58/x
  3. Step 3: Cross multiply
    225,911.58x = 311,759.19 × 125,309.58
  4. Step 4: Simplify right side
    225,911.58x = 39,066,413,160.04
  5. Step 5: Solve for x
    x = 39,066,413,160.04/225,911.58
  6. Step 6: Final answer
    x = 172,927.89

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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.