Home / 326,122.20-489,185.10-148,505.40

Finding the Fourth Proportional to 326,122.20, 489,185.10 and 148,505.40

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Solution

The fourth proportional to 326,122.20, 489,185.10 and 148,505.40 is: 222,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,122.20 : 489,185.10 = 148,505.40 : x
  2. Step 2: Convert to fraction form
    326,122.20/489,185.10 = 148,505.40/x
  3. Step 3: Cross multiply
    326,122.20x = 489,185.10 × 148,505.40
  4. Step 4: Simplify right side
    326,122.20x = 72,646,628,949.54
  5. Step 5: Solve for x
    x = 72,646,628,949.54/326,122.20
  6. Step 6: Final answer
    x = 222,758.92

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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.