Home / 206,619.40-309,491.70-162,004.60

Finding the Fourth Proportional to 206,619.40, 309,491.70 and 162,004.60

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Solution

The fourth proportional to 206,619.40, 309,491.70 and 162,004.60 is: 242,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,619.40 : 309,491.70 = 162,004.60 : x
  2. Step 2: Convert to fraction form
    206,619.40/309,491.70 = 162,004.60/x
  3. Step 3: Cross multiply
    206,619.40x = 309,491.70 × 162,004.60
  4. Step 4: Simplify right side
    206,619.40x = 50,139,079,061.82
  5. Step 5: Solve for x
    x = 50,139,079,061.82/206,619.40
  6. Step 6: Final answer
    x = 242,663.95

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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.