Home / 206,386.49-309,653.48-125,498.09

Finding the Fourth Proportional to 206,386.49, 309,653.48 and 125,498.09

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Solution

The fourth proportional to 206,386.49, 309,653.48 and 125,498.09 is: 188,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,386.49 : 309,653.48 = 125,498.09 : x
  2. Step 2: Convert to fraction form
    206,386.49/309,653.48 = 125,498.09/x
  3. Step 3: Cross multiply
    206,386.49x = 309,653.48 × 125,498.09
  4. Step 4: Simplify right side
    206,386.49x = 38,860,919,841.46
  5. Step 5: Solve for x
    x = 38,860,919,841.46/206,386.49
  6. Step 6: Final answer
    x = 188,291.97

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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.