Home / 206,323.28-309,574.01-111,620.17

Finding the Fourth Proportional to 206,323.28, 309,574.01 and 111,620.17

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Solution

The fourth proportional to 206,323.28, 309,574.01 and 111,620.17 is: 167,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,323.28 : 309,574.01 = 111,620.17 : x
  2. Step 2: Convert to fraction form
    206,323.28/309,574.01 = 111,620.17/x
  3. Step 3: Cross multiply
    206,323.28x = 309,574.01 × 111,620.17
  4. Step 4: Simplify right side
    206,323.28x = 34,554,703,623.78
  5. Step 5: Solve for x
    x = 34,554,703,623.78/206,323.28
  6. Step 6: Final answer
    x = 167,478.45

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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.