Home / 326,066.20-489,099.30-211,904.80

Finding the Fourth Proportional to 326,066.20, 489,099.30 and 211,904.80

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Solution

The fourth proportional to 326,066.20, 489,099.30 and 211,904.80 is: 317,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,066.20 : 489,099.30 = 211,904.80 : x
  2. Step 2: Convert to fraction form
    326,066.20/489,099.30 = 211,904.80/x
  3. Step 3: Cross multiply
    326,066.20x = 489,099.30 × 211,904.80
  4. Step 4: Simplify right side
    326,066.20x = 103,642,489,346.64
  5. Step 5: Solve for x
    x = 103,642,489,346.64/326,066.20
  6. Step 6: Final answer
    x = 317,857.20

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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.