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Finding the Fourth Proportional to 338,331.20, 507,130.56 and 220,087.04

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Solution

The fourth proportional to 338,331.20, 507,130.56 and 220,087.04 is: 329,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,331.20 : 507,130.56 = 220,087.04 : x
  2. Step 2: Convert to fraction form
    338,331.20/507,130.56 = 220,087.04/x
  3. Step 3: Cross multiply
    338,331.20x = 507,130.56 × 220,087.04
  4. Step 4: Simplify right side
    338,331.20x = 111,612,863,843.94
  5. Step 5: Solve for x
    x = 111,612,863,843.94/338,331.20
  6. Step 6: Final answer
    x = 329,892.32

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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.