Home / 306,077.20-459,115.80-231,427.60

Finding the Fourth Proportional to 306,077.20, 459,115.80 and 231,427.60

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Solution

The fourth proportional to 306,077.20, 459,115.80 and 231,427.60 is: 347,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,077.20 : 459,115.80 = 231,427.60 : x
  2. Step 2: Convert to fraction form
    306,077.20/459,115.80 = 231,427.60/x
  3. Step 3: Cross multiply
    306,077.20x = 459,115.80 × 231,427.60
  4. Step 4: Simplify right side
    306,077.20x = 106,252,067,716.08
  5. Step 5: Solve for x
    x = 106,252,067,716.08/306,077.20
  6. Step 6: Final answer
    x = 347,141.40

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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.