Home / 206,439.81-309,585.33-71,467.22

Finding the Fourth Proportional to 206,439.81, 309,585.33 and 71,467.22

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Solution

The fourth proportional to 206,439.81, 309,585.33 and 71,467.22 is: 107,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,439.81 : 309,585.33 = 71,467.22 : x
  2. Step 2: Convert to fraction form
    206,439.81/309,585.33 = 71,467.22/x
  3. Step 3: Cross multiply
    206,439.81x = 309,585.33 × 71,467.22
  4. Step 4: Simplify right side
    206,439.81x = 22,125,201,339.96
  5. Step 5: Solve for x
    x = 22,125,201,339.96/206,439.81
  6. Step 6: Final answer
    x = 107,175.07

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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.