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Finding the Fourth Proportional to 326,538.88, 489,931.44 and 222,340.48

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Solution

The fourth proportional to 326,538.88, 489,931.44 and 222,340.48 is: 333,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,538.88 : 489,931.44 = 222,340.48 : x
  2. Step 2: Convert to fraction form
    326,538.88/489,931.44 = 222,340.48/x
  3. Step 3: Cross multiply
    326,538.88x = 489,931.44 × 222,340.48
  4. Step 4: Simplify right side
    326,538.88x = 108,931,591,536.69
  5. Step 5: Solve for x
    x = 108,931,591,536.69/326,538.88
  6. Step 6: Final answer
    x = 333,594.55

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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.