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Finding the Fourth Proportional to 215,293.72, 322,645.33 and 136,266.88

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Solution

The fourth proportional to 215,293.72, 322,645.33 and 136,266.88 is: 204,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,293.72 : 322,645.33 = 136,266.88 : x
  2. Step 2: Convert to fraction form
    215,293.72/322,645.33 = 136,266.88/x
  3. Step 3: Cross multiply
    215,293.72x = 322,645.33 × 136,266.88
  4. Step 4: Simplify right side
    215,293.72x = 43,965,871,318.39
  5. Step 5: Solve for x
    x = 43,965,871,318.39/215,293.72
  6. Step 6: Final answer
    x = 204,213.44

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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.