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Finding the Fourth Proportional to 225,609.96, 311,342.22 and 125,007.96

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Solution

The fourth proportional to 225,609.96, 311,342.22 and 125,007.96 is: 172,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,609.96 : 311,342.22 = 125,007.96 : x
  2. Step 2: Convert to fraction form
    225,609.96/311,342.22 = 125,007.96/x
  3. Step 3: Cross multiply
    225,609.96x = 311,342.22 × 125,007.96
  4. Step 4: Simplify right side
    225,609.96x = 38,920,255,784.07
  5. Step 5: Solve for x
    x = 38,920,255,784.07/225,609.96
  6. Step 6: Final answer
    x = 172,511.25

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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.