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Finding the Fourth Proportional to 279,991.58, 383,297.14 and 277,990.46

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Solution

The fourth proportional to 279,991.58, 383,297.14 and 277,990.46 is: 380,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,991.58 : 383,297.14 = 277,990.46 : x
  2. Step 2: Convert to fraction form
    279,991.58/383,297.14 = 277,990.46/x
  3. Step 3: Cross multiply
    279,991.58x = 383,297.14 × 277,990.46
  4. Step 4: Simplify right side
    279,991.58x = 106,552,948,265.28
  5. Step 5: Solve for x
    x = 106,552,948,265.28/279,991.58
  6. Step 6: Final answer
    x = 380,557.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.