Home / 326,066.20-489,342.30-168,213.40

Finding the Fourth Proportional to 326,066.20, 489,342.30 and 168,213.40

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Solution

The fourth proportional to 326,066.20, 489,342.30 and 168,213.40 is: 252,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,066.20 : 489,342.30 = 168,213.40 : x
  2. Step 2: Convert to fraction form
    326,066.20/489,342.30 = 168,213.40/x
  3. Step 3: Cross multiply
    326,066.20x = 489,342.30 × 168,213.40
  4. Step 4: Simplify right side
    326,066.20x = 82,313,932,046.82
  5. Step 5: Solve for x
    x = 82,313,932,046.82/326,066.20
  6. Step 6: Final answer
    x = 252,445.46

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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.