Home / 204,518.77-306,918.28-71,399.02

Finding the Fourth Proportional to 204,518.77, 306,918.28 and 71,399.02

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Solution

The fourth proportional to 204,518.77, 306,918.28 and 71,399.02 is: 107,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,518.77 : 306,918.28 = 71,399.02 : x
  2. Step 2: Convert to fraction form
    204,518.77/306,918.28 = 71,399.02/x
  3. Step 3: Cross multiply
    204,518.77x = 306,918.28 × 71,399.02
  4. Step 4: Simplify right side
    204,518.77x = 21,913,664,412.09
  5. Step 5: Solve for x
    x = 21,913,664,412.09/204,518.77
  6. Step 6: Final answer
    x = 107,147.45

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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.