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Finding the Fourth Proportional to 298,850.40, 448,275.60 and 269,325.90

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Solution

The fourth proportional to 298,850.40, 448,275.60 and 269,325.90 is: 403,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,850.40 : 448,275.60 = 269,325.90 : x
  2. Step 2: Convert to fraction form
    298,850.40/448,275.60 = 269,325.90/x
  3. Step 3: Cross multiply
    298,850.40x = 448,275.60 × 269,325.90
  4. Step 4: Simplify right side
    298,850.40x = 120,732,229,418.04
  5. Step 5: Solve for x
    x = 120,732,229,418.04/298,850.40
  6. Step 6: Final answer
    x = 403,988.85

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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.