Home / 206,278.94-309,507.32-111,575.80

Finding the Fourth Proportional to 206,278.94, 309,507.32 and 111,575.80

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Solution

The fourth proportional to 206,278.94, 309,507.32 and 111,575.80 is: 167,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,278.94 : 309,507.32 = 111,575.80 : x
  2. Step 2: Convert to fraction form
    206,278.94/309,507.32 = 111,575.80/x
  3. Step 3: Cross multiply
    206,278.94x = 309,507.32 × 111,575.80
  4. Step 4: Simplify right side
    206,278.94x = 34,533,526,276.98
  5. Step 5: Solve for x
    x = 34,533,526,276.98/206,278.94
  6. Step 6: Final answer
    x = 167,411.79

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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.