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Finding the Fourth Proportional to 171,941.70, 257,912.55 and 169,317.30

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Solution

The fourth proportional to 171,941.70, 257,912.55 and 169,317.30 is: 253,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,941.70 : 257,912.55 = 169,317.30 : x
  2. Step 2: Convert to fraction form
    171,941.70/257,912.55 = 169,317.30/x
  3. Step 3: Cross multiply
    171,941.70x = 257,912.55 × 169,317.30
  4. Step 4: Simplify right side
    171,941.70x = 43,669,056,602.12
  5. Step 5: Solve for x
    x = 43,669,056,602.12/171,941.70
  6. Step 6: Final answer
    x = 253,975.95

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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.