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Finding the Fourth Proportional to 329,751.06, 455,105.37 and 208,903.56

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Solution

The fourth proportional to 329,751.06, 455,105.37 and 208,903.56 is: 288,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,751.06 : 455,105.37 = 208,903.56 : x
  2. Step 2: Convert to fraction form
    329,751.06/455,105.37 = 208,903.56/x
  3. Step 3: Cross multiply
    329,751.06x = 455,105.37 × 208,903.56
  4. Step 4: Simplify right side
    329,751.06x = 95,073,131,968.12
  5. Step 5: Solve for x
    x = 95,073,131,968.12/329,751.06
  6. Step 6: Final answer
    x = 288,317.90

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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.