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Finding the Fourth Proportional to 293,879.40, 440,819.10 and 265,309.80

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Solution

The fourth proportional to 293,879.40, 440,819.10 and 265,309.80 is: 397,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,879.40 : 440,819.10 = 265,309.80 : x
  2. Step 2: Convert to fraction form
    293,879.40/440,819.10 = 265,309.80/x
  3. Step 3: Cross multiply
    293,879.40x = 440,819.10 × 265,309.80
  4. Step 4: Simplify right side
    293,879.40x = 116,953,627,257.18
  5. Step 5: Solve for x
    x = 116,953,627,257.18/293,879.40
  6. Step 6: Final answer
    x = 397,964.70

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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.