Home / 204,569.21-306,994.23-71,449.72

Finding the Fourth Proportional to 204,569.21, 306,994.23 and 71,449.72

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Solution

The fourth proportional to 204,569.21, 306,994.23 and 71,449.72 is: 107,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,569.21 : 306,994.23 = 71,449.72 : x
  2. Step 2: Convert to fraction form
    204,569.21/306,994.23 = 71,449.72/x
  3. Step 3: Cross multiply
    204,569.21x = 306,994.23 × 71,449.72
  4. Step 4: Simplify right side
    204,569.21x = 21,934,651,007.63
  5. Step 5: Solve for x
    x = 21,934,651,007.63/204,569.21
  6. Step 6: Final answer
    x = 107,223.62

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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.