Home / 205,938.11-307,654.83-133,299.30

Finding the Fourth Proportional to 205,938.11, 307,654.83 and 133,299.30

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Solution

The fourth proportional to 205,938.11, 307,654.83 and 133,299.30 is: 199,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,938.11 : 307,654.83 = 133,299.30 : x
  2. Step 2: Convert to fraction form
    205,938.11/307,654.83 = 133,299.30/x
  3. Step 3: Cross multiply
    205,938.11x = 307,654.83 × 133,299.30
  4. Step 4: Simplify right side
    205,938.11x = 41,010,173,100.31
  5. Step 5: Solve for x
    x = 41,010,173,100.31/205,938.11
  6. Step 6: Final answer
    x = 199,138.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.