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Finding the Fourth Proportional to 368,276.40, 552,414.60 and 309,227.40

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Solution

The fourth proportional to 368,276.40, 552,414.60 and 309,227.40 is: 463,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,276.40 : 552,414.60 = 309,227.40 : x
  2. Step 2: Convert to fraction form
    368,276.40/552,414.60 = 309,227.40/x
  3. Step 3: Cross multiply
    368,276.40x = 552,414.60 × 309,227.40
  4. Step 4: Simplify right side
    368,276.40x = 170,821,730,480.04
  5. Step 5: Solve for x
    x = 170,821,730,480.04/368,276.40
  6. Step 6: Final answer
    x = 463,841.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.