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Finding the Fourth Proportional to 326,434.80, 488,717.80 and 200,930.80

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Solution

The fourth proportional to 326,434.80, 488,717.80 and 200,930.80 is: 300,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,434.80 : 488,717.80 = 200,930.80 : x
  2. Step 2: Convert to fraction form
    326,434.80/488,717.80 = 200,930.80/x
  3. Step 3: Cross multiply
    326,434.80x = 488,717.80 × 200,930.80
  4. Step 4: Simplify right side
    326,434.80x = 98,198,458,528.24
  5. Step 5: Solve for x
    x = 98,198,458,528.24/326,434.80
  6. Step 6: Final answer
    x = 300,821.05

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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.