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Finding the Fourth Proportional to 204,560.66, 306,860.81 and 69,719.81

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Solution

The fourth proportional to 204,560.66, 306,860.81 and 69,719.81 is: 104,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,560.66 : 306,860.81 = 69,719.81 : x
  2. Step 2: Convert to fraction form
    204,560.66/306,860.81 = 69,719.81/x
  3. Step 3: Cross multiply
    204,560.66x = 306,860.81 × 69,719.81
  4. Step 4: Simplify right side
    204,560.66x = 21,394,275,486.74
  5. Step 5: Solve for x
    x = 21,394,275,486.74/204,560.66
  6. Step 6: Final answer
    x = 104,586.46

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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.