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Finding the Fourth Proportional to 138,848, 208,272.60 and 33,667.16

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Solution

The fourth proportional to 138,848, 208,272.60 and 33,667.16 is: 50,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,848 : 208,272.60 = 33,667.16 : x
  2. Step 2: Convert to fraction form
    138,848/208,272.60 = 33,667.16/x
  3. Step 3: Cross multiply
    138,848x = 208,272.60 × 33,667.16
  4. Step 4: Simplify right side
    138,848x = 7,011,946,947.82
  5. Step 5: Solve for x
    x = 7,011,946,947.82/138,848
  6. Step 6: Final answer
    x = 50,500.89

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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.