Home / 277,994.32-417,015.96-78,316.36

Finding the Fourth Proportional to 277,994.32, 417,015.96 and 78,316.36

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Solution

The fourth proportional to 277,994.32, 417,015.96 and 78,316.36 is: 117,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,994.32 : 417,015.96 = 78,316.36 : x
  2. Step 2: Convert to fraction form
    277,994.32/417,015.96 = 78,316.36/x
  3. Step 3: Cross multiply
    277,994.32x = 417,015.96 × 78,316.36
  4. Step 4: Simplify right side
    277,994.32x = 32,659,172,049.11
  5. Step 5: Solve for x
    x = 32,659,172,049.11/277,994.32
  6. Step 6: Final answer
    x = 117,481.44

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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.