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Finding the Fourth Proportional to 260,142.75, 358,997.00 and 140,910.75

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Solution

The fourth proportional to 260,142.75, 358,997.00 and 140,910.75 is: 194,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,142.75 : 358,997.00 = 140,910.75 : x
  2. Step 2: Convert to fraction form
    260,142.75/358,997.00 = 140,910.75/x
  3. Step 3: Cross multiply
    260,142.75x = 358,997.00 × 140,910.75
  4. Step 4: Simplify right side
    260,142.75x = 50,586,535,813.20
  5. Step 5: Solve for x
    x = 50,586,535,813.20/260,142.75
  6. Step 6: Final answer
    x = 194,456.84

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1.5x scale

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.