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Finding the Fourth Proportional to 298,317.80, 446,310.30 and 193,341.80

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Solution

The fourth proportional to 298,317.80, 446,310.30 and 193,341.80 is: 289,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,317.80 : 446,310.30 = 193,341.80 : x
  2. Step 2: Convert to fraction form
    298,317.80/446,310.30 = 193,341.80/x
  3. Step 3: Cross multiply
    298,317.80x = 446,310.30 × 193,341.80
  4. Step 4: Simplify right side
    298,317.80x = 86,290,436,760.54
  5. Step 5: Solve for x
    x = 86,290,436,760.54/298,317.80
  6. Step 6: Final answer
    x = 289,256.75

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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.