Home / 206,415.11-309,653.45-73,284.26

Finding the Fourth Proportional to 206,415.11, 309,653.45 and 73,284.26

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Solution

The fourth proportional to 206,415.11, 309,653.45 and 73,284.26 is: 109,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,415.11 : 309,653.45 = 73,284.26 : x
  2. Step 2: Convert to fraction form
    206,415.11/309,653.45 = 73,284.26/x
  3. Step 3: Cross multiply
    206,415.11x = 309,653.45 × 73,284.26
  4. Step 4: Simplify right side
    206,415.11x = 22,692,722,025.01
  5. Step 5: Solve for x
    x = 22,692,722,025.01/206,415.11
  6. Step 6: Final answer
    x = 109,937.31

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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.