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Finding the Fourth Proportional to 203,740.00, 305,540.78 and 70,589.17

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Solution

The fourth proportional to 203,740.00, 305,540.78 and 70,589.17 is: 105,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,740.00 : 305,540.78 = 70,589.17 : x
  2. Step 2: Convert to fraction form
    203,740.00/305,540.78 = 70,589.17/x
  3. Step 3: Cross multiply
    203,740.00x = 305,540.78 × 70,589.17
  4. Step 4: Simplify right side
    203,740.00x = 21,567,868,533.65
  5. Step 5: Solve for x
    x = 21,567,868,533.65/203,740.00
  6. Step 6: Final answer
    x = 105,859.77

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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.