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Finding the Fourth Proportional to 205,807.77, 308,757.03 and 61,707.87

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Solution

The fourth proportional to 205,807.77, 308,757.03 and 61,707.87 is: 92,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,807.77 : 308,757.03 = 61,707.87 : x
  2. Step 2: Convert to fraction form
    205,807.77/308,757.03 = 61,707.87/x
  3. Step 3: Cross multiply
    205,807.77x = 308,757.03 × 61,707.87
  4. Step 4: Simplify right side
    205,807.77x = 19,052,738,668.83
  5. Step 5: Solve for x
    x = 19,052,738,668.83/205,807.77
  6. Step 6: Final answer
    x = 92,575.41

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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.