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Finding the Fourth Proportional to 208,019.21, 312,223.82 and 108,250.09

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Solution

The fourth proportional to 208,019.21, 312,223.82 and 108,250.09 is: 162,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,019.21 : 312,223.82 = 108,250.09 : x
  2. Step 2: Convert to fraction form
    208,019.21/312,223.82 = 108,250.09/x
  3. Step 3: Cross multiply
    208,019.21x = 312,223.82 × 108,250.09
  4. Step 4: Simplify right side
    208,019.21x = 33,798,255,293.33
  5. Step 5: Solve for x
    x = 33,798,255,293.33/208,019.21
  6. Step 6: Final answer
    x = 162,476.61

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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.