Home / 206,346.75-309,480.76-64,193.79

Finding the Fourth Proportional to 206,346.75, 309,480.76 and 64,193.79

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Solution

The fourth proportional to 206,346.75, 309,480.76 and 64,193.79 is: 96,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,346.75 : 309,480.76 = 64,193.79 : x
  2. Step 2: Convert to fraction form
    206,346.75/309,480.76 = 64,193.79/x
  3. Step 3: Cross multiply
    206,346.75x = 309,480.76 × 64,193.79
  4. Step 4: Simplify right side
    206,346.75x = 19,866,742,916.48
  5. Step 5: Solve for x
    x = 19,866,742,916.48/206,346.75
  6. Step 6: Final answer
    x = 96,278.44

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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.