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Finding the Fourth Proportional to 398,751.00, 550,309.11 and 226,722.95

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Solution

The fourth proportional to 398,751.00, 550,309.11 and 226,722.95 is: 312,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,751.00 : 550,309.11 = 226,722.95 : x
  2. Step 2: Convert to fraction form
    398,751.00/550,309.11 = 226,722.95/x
  3. Step 3: Cross multiply
    398,751.00x = 550,309.11 × 226,722.95
  4. Step 4: Simplify right side
    398,751.00x = 124,767,705,205.95
  5. Step 5: Solve for x
    x = 124,767,705,205.95/398,751.00
  6. Step 6: Final answer
    x = 312,896.28

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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.