Home / 208,185.12-312,276.24-50,414.40

Finding the Fourth Proportional to 208,185.12, 312,276.24 and 50,414.40

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Solution

The fourth proportional to 208,185.12, 312,276.24 and 50,414.40 is: 75,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,185.12 : 312,276.24 = 50,414.40 : x
  2. Step 2: Convert to fraction form
    208,185.12/312,276.24 = 50,414.40/x
  3. Step 3: Cross multiply
    208,185.12x = 312,276.24 × 50,414.40
  4. Step 4: Simplify right side
    208,185.12x = 15,743,219,273.86
  5. Step 5: Solve for x
    x = 15,743,219,273.86/208,185.12
  6. Step 6: Final answer
    x = 75,621.25

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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.