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Finding the Fourth Proportional to 326,200.70, 489,301.05 and 247,468.70

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Solution

The fourth proportional to 326,200.70, 489,301.05 and 247,468.70 is: 371,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,200.70 : 489,301.05 = 247,468.70 : x
  2. Step 2: Convert to fraction form
    326,200.70/489,301.05 = 247,468.70/x
  3. Step 3: Cross multiply
    326,200.70x = 489,301.05 × 247,468.70
  4. Step 4: Simplify right side
    326,200.70x = 121,086,694,752.14
  5. Step 5: Solve for x
    x = 121,086,694,752.14/326,200.70
  6. Step 6: Final answer
    x = 371,203.05

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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.