Home / 338,869.87-507,974.32-161,329.21

Finding the Fourth Proportional to 338,869.87, 507,974.32 and 161,329.21

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Solution

The fourth proportional to 338,869.87, 507,974.32 and 161,329.21 is: 241,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,869.87 : 507,974.32 = 161,329.21 : x
  2. Step 2: Convert to fraction form
    338,869.87/507,974.32 = 161,329.21/x
  3. Step 3: Cross multiply
    338,869.87x = 507,974.32 × 161,329.21
  4. Step 4: Simplify right side
    338,869.87x = 81,951,094,677.61
  5. Step 5: Solve for x
    x = 81,951,094,677.61/338,869.87
  6. Step 6: Final answer
    x = 241,836.48

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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.