Home / 309,933.58-464,719.72-120,172.26

Finding the Fourth Proportional to 309,933.58, 464,719.72 and 120,172.26

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Solution

The fourth proportional to 309,933.58, 464,719.72 and 120,172.26 is: 180,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,933.58 : 464,719.72 = 120,172.26 : x
  2. Step 2: Convert to fraction form
    309,933.58/464,719.72 = 120,172.26/x
  3. Step 3: Cross multiply
    309,933.58x = 464,719.72 × 120,172.26
  4. Step 4: Simplify right side
    309,933.58x = 55,846,419,018.97
  5. Step 5: Solve for x
    x = 55,846,419,018.97/309,933.58
  6. Step 6: Final answer
    x = 180,188.35

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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.