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Finding the Fourth Proportional to 171,817.80, 257,289.30 and 163,944.60

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Solution

The fourth proportional to 171,817.80, 257,289.30 and 163,944.60 is: 245,499.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,817.80 : 257,289.30 = 163,944.60 : x
  2. Step 2: Convert to fraction form
    171,817.80/257,289.30 = 163,944.60/x
  3. Step 3: Cross multiply
    171,817.80x = 257,289.30 × 163,944.60
  4. Step 4: Simplify right side
    171,817.80x = 42,181,191,372.78
  5. Step 5: Solve for x
    x = 42,181,191,372.78/171,817.80
  6. Step 6: Final answer
    x = 245,499.54

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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.