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Finding the Fourth Proportional to 299,902.80, 449,854.20 and 294,718.80

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Solution

The fourth proportional to 299,902.80, 449,854.20 and 294,718.80 is: 442,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,902.80 : 449,854.20 = 294,718.80 : x
  2. Step 2: Convert to fraction form
    299,902.80/449,854.20 = 294,718.80/x
  3. Step 3: Cross multiply
    299,902.80x = 449,854.20 × 294,718.80
  4. Step 4: Simplify right side
    299,902.80x = 132,580,489,998.96
  5. Step 5: Solve for x
    x = 132,580,489,998.96/299,902.80
  6. Step 6: Final answer
    x = 442,078.20

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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.