Home / 309,933.45-464,719.52-120,172.12

Finding the Fourth Proportional to 309,933.45, 464,719.52 and 120,172.12

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Solution

The fourth proportional to 309,933.45, 464,719.52 and 120,172.12 is: 180,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,933.45 : 464,719.52 = 120,172.12 : x
  2. Step 2: Convert to fraction form
    309,933.45/464,719.52 = 120,172.12/x
  3. Step 3: Cross multiply
    309,933.45x = 464,719.52 × 120,172.12
  4. Step 4: Simplify right side
    309,933.45x = 55,846,329,062.41
  5. Step 5: Solve for x
    x = 55,846,329,062.41/309,933.45
  6. Step 6: Final answer
    x = 180,188.13

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1.5x scale

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.