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Finding the Fourth Proportional to 305,025.88, 420,949.90 and 169,062.82

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Solution

The fourth proportional to 305,025.88, 420,949.90 and 169,062.82 is: 233,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,025.88 : 420,949.90 = 169,062.82 : x
  2. Step 2: Convert to fraction form
    305,025.88/420,949.90 = 169,062.82/x
  3. Step 3: Cross multiply
    305,025.88x = 420,949.90 × 169,062.82
  4. Step 4: Simplify right side
    305,025.88x = 71,166,977,172.72
  5. Step 5: Solve for x
    x = 71,166,977,172.72/305,025.88
  6. Step 6: Final answer
    x = 233,314.55

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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.