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Finding the Fourth Proportional to 203,425.98, 305,097.27 and 77,022.62

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Solution

The fourth proportional to 203,425.98, 305,097.27 and 77,022.62 is: 115,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,425.98 : 305,097.27 = 77,022.62 : x
  2. Step 2: Convert to fraction form
    203,425.98/305,097.27 = 77,022.62/x
  3. Step 3: Cross multiply
    203,425.98x = 305,097.27 × 77,022.62
  4. Step 4: Simplify right side
    203,425.98x = 23,499,389,564.76
  5. Step 5: Solve for x
    x = 23,499,389,564.76/203,425.98
  6. Step 6: Final answer
    x = 115,518.13

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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.