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Finding the Fourth Proportional to 325,424.70, 488,574.45 and 207,618.30

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Solution

The fourth proportional to 325,424.70, 488,574.45 and 207,618.30 is: 311,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,424.70 : 488,574.45 = 207,618.30 : x
  2. Step 2: Convert to fraction form
    325,424.70/488,574.45 = 207,618.30/x
  3. Step 3: Cross multiply
    325,424.70x = 488,574.45 × 207,618.30
  4. Step 4: Simplify right side
    325,424.70x = 101,436,996,732.44
  5. Step 5: Solve for x
    x = 101,436,996,732.44/325,424.70
  6. Step 6: Final answer
    x = 311,706.51

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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.