Home / 419,664.20-629,495.51-131,497.90

Finding the Fourth Proportional to 419,664.20, 629,495.51 and 131,497.90

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Solution

The fourth proportional to 419,664.20, 629,495.51 and 131,497.90 is: 197,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,664.20 : 629,495.51 = 131,497.90 : x
  2. Step 2: Convert to fraction form
    419,664.20/629,495.51 = 131,497.90/x
  3. Step 3: Cross multiply
    419,664.20x = 629,495.51 × 131,497.90
  4. Step 4: Simplify right side
    419,664.20x = 82,777,337,953.17
  5. Step 5: Solve for x
    x = 82,777,337,953.17/419,664.20
  6. Step 6: Final answer
    x = 197,246.60

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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.