Home / 208,226.31-312,339.50-75,106.55

Finding the Fourth Proportional to 208,226.31, 312,339.50 and 75,106.55

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Solution

The fourth proportional to 208,226.31, 312,339.50 and 75,106.55 is: 112,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,226.31 : 312,339.50 = 75,106.55 : x
  2. Step 2: Convert to fraction form
    208,226.31/312,339.50 = 75,106.55/x
  3. Step 3: Cross multiply
    208,226.31x = 312,339.50 × 75,106.55
  4. Step 4: Simplify right side
    208,226.31x = 23,458,741,789.42
  5. Step 5: Solve for x
    x = 23,458,741,789.42/208,226.31
  6. Step 6: Final answer
    x = 112,659.84

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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.