Home / 306,923.60-423,619.92-206,263.28

Finding the Fourth Proportional to 306,923.60, 423,619.92 and 206,263.28

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Solution

The fourth proportional to 306,923.60, 423,619.92 and 206,263.28 is: 284,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,923.60 : 423,619.92 = 206,263.28 : x
  2. Step 2: Convert to fraction form
    306,923.60/423,619.92 = 206,263.28/x
  3. Step 3: Cross multiply
    306,923.60x = 423,619.92 × 206,263.28
  4. Step 4: Simplify right side
    306,923.60x = 87,377,234,172.54
  5. Step 5: Solve for x
    x = 87,377,234,172.54/306,923.60
  6. Step 6: Final answer
    x = 284,687.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.