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Finding the Fourth Proportional to 366,555.54, 505,821.09 and 203,210.43

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Solution

The fourth proportional to 366,555.54, 505,821.09 and 203,210.43 is: 280,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,555.54 : 505,821.09 = 203,210.43 : x
  2. Step 2: Convert to fraction form
    366,555.54/505,821.09 = 203,210.43/x
  3. Step 3: Cross multiply
    366,555.54x = 505,821.09 × 203,210.43
  4. Step 4: Simplify right side
    366,555.54x = 102,788,121,201.97
  5. Step 5: Solve for x
    x = 102,788,121,201.97/366,555.54
  6. Step 6: Final answer
    x = 280,416.23

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1.5x scale

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.