Home / 281,774.45-421,997.37-218,084.56

Finding the Fourth Proportional to 281,774.45, 421,997.37 and 218,084.56

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Solution

The fourth proportional to 281,774.45, 421,997.37 and 218,084.56 is: 326,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,774.45 : 421,997.37 = 218,084.56 : x
  2. Step 2: Convert to fraction form
    281,774.45/421,997.37 = 218,084.56/x
  3. Step 3: Cross multiply
    281,774.45x = 421,997.37 × 218,084.56
  4. Step 4: Simplify right side
    281,774.45x = 92,031,112,465.33
  5. Step 5: Solve for x
    x = 92,031,112,465.33/281,774.45
  6. Step 6: Final answer
    x = 326,612.70

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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.