Home / 171,910.20-257,865.30-169,285.80

Finding the Fourth Proportional to 171,910.20, 257,865.30 and 169,285.80

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Solution

The fourth proportional to 171,910.20, 257,865.30 and 169,285.80 is: 253,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,910.20 : 257,865.30 = 169,285.80 : x
  2. Step 2: Convert to fraction form
    171,910.20/257,865.30 = 169,285.80/x
  3. Step 3: Cross multiply
    171,910.20x = 257,865.30 × 169,285.80
  4. Step 4: Simplify right side
    171,910.20x = 43,652,933,602.74
  5. Step 5: Solve for x
    x = 43,652,933,602.74/171,910.20
  6. Step 6: Final answer
    x = 253,928.70

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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.