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Finding the Fourth Proportional to 231,957.87, 347,991.30 and 72,025.62

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Solution

The fourth proportional to 231,957.87, 347,991.30 and 72,025.62 is: 108,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,957.87 : 347,991.30 = 72,025.62 : x
  2. Step 2: Convert to fraction form
    231,957.87/347,991.30 = 72,025.62/x
  3. Step 3: Cross multiply
    231,957.87x = 347,991.30 × 72,025.62
  4. Step 4: Simplify right side
    231,957.87x = 25,064,289,137.11
  5. Step 5: Solve for x
    x = 25,064,289,137.11/231,957.87
  6. Step 6: Final answer
    x = 108,055.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.