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Finding the Fourth Proportional to 326,204.60, 489,306.90 and 270,908.60

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Solution

The fourth proportional to 326,204.60, 489,306.90 and 270,908.60 is: 406,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,204.60 : 489,306.90 = 270,908.60 : x
  2. Step 2: Convert to fraction form
    326,204.60/489,306.90 = 270,908.60/x
  3. Step 3: Cross multiply
    326,204.60x = 489,306.90 × 270,908.60
  4. Step 4: Simplify right side
    326,204.60x = 132,557,447,249.34
  5. Step 5: Solve for x
    x = 132,557,447,249.34/326,204.60
  6. Step 6: Final answer
    x = 406,362.90

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1.5x scale

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.