Home / 400,982.28-601,607.69-131,122.86

Finding the Fourth Proportional to 400,982.28, 601,607.69 and 131,122.86

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Solution

The fourth proportional to 400,982.28, 601,607.69 and 131,122.86 is: 196,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,982.28 : 601,607.69 = 131,122.86 : x
  2. Step 2: Convert to fraction form
    400,982.28/601,607.69 = 131,122.86/x
  3. Step 3: Cross multiply
    400,982.28x = 601,607.69 × 131,122.86
  4. Step 4: Simplify right side
    400,982.28x = 78,884,520,255.18
  5. Step 5: Solve for x
    x = 78,884,520,255.18/400,982.28
  6. Step 6: Final answer
    x = 196,728.20

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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.