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Finding the Fourth Proportional to 138,804.93, 208,207.94 and 33,623.73

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Solution

The fourth proportional to 138,804.93, 208,207.94 and 33,623.73 is: 50,435.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,804.93 : 208,207.94 = 33,623.73 : x
  2. Step 2: Convert to fraction form
    138,804.93/208,207.94 = 33,623.73/x
  3. Step 3: Cross multiply
    138,804.93x = 208,207.94 × 33,623.73
  4. Step 4: Simplify right side
    138,804.93x = 7,000,727,390.30
  5. Step 5: Solve for x
    x = 7,000,727,390.30/138,804.93
  6. Step 6: Final answer
    x = 50,435.73

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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.