Home / 400,976.80-601,380.32-238,942.58

Finding the Fourth Proportional to 400,976.80, 601,380.32 and 238,942.58

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Solution

The fourth proportional to 400,976.80, 601,380.32 and 238,942.58 is: 358,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.80 : 601,380.32 = 238,942.58 : x
  2. Step 2: Convert to fraction form
    400,976.80/601,380.32 = 238,942.58/x
  3. Step 3: Cross multiply
    400,976.80x = 601,380.32 × 238,942.58
  4. Step 4: Simplify right side
    400,976.80x = 143,695,365,222.03
  5. Step 5: Solve for x
    x = 143,695,365,222.03/400,976.80
  6. Step 6: Final answer
    x = 358,363.29

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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.