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Finding the Fourth Proportional to 293,377.60, 440,212.20 and 115,890.40

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Solution

The fourth proportional to 293,377.60, 440,212.20 and 115,890.40 is: 173,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,377.60 : 440,212.20 = 115,890.40 : x
  2. Step 2: Convert to fraction form
    293,377.60/440,212.20 = 115,890.40/x
  3. Step 3: Cross multiply
    293,377.60x = 440,212.20 × 115,890.40
  4. Step 4: Simplify right side
    293,377.60x = 51,016,367,942.88
  5. Step 5: Solve for x
    x = 51,016,367,942.88/293,377.60
  6. Step 6: Final answer
    x = 173,893.19

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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.