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Finding the Fourth Proportional to 340,550.60, 510,879.90 and 115,932.20

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Solution

The fourth proportional to 340,550.60, 510,879.90 and 115,932.20 is: 173,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,550.60 : 510,879.90 = 115,932.20 : x
  2. Step 2: Convert to fraction form
    340,550.60/510,879.90 = 115,932.20/x
  3. Step 3: Cross multiply
    340,550.60x = 510,879.90 × 115,932.20
  4. Step 4: Simplify right side
    340,550.60x = 59,227,430,742.78
  5. Step 5: Solve for x
    x = 59,227,430,742.78/340,550.60
  6. Step 6: Final answer
    x = 173,916.68

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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.