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Finding the Fourth Proportional to 273,814.80, 410,736.88 and 86,840.88

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Solution

The fourth proportional to 273,814.80, 410,736.88 and 86,840.88 is: 130,265.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,814.80 : 410,736.88 = 86,840.88 : x
  2. Step 2: Convert to fraction form
    273,814.80/410,736.88 = 86,840.88/x
  3. Step 3: Cross multiply
    273,814.80x = 410,736.88 × 86,840.88
  4. Step 4: Simplify right side
    273,814.80x = 35,668,752,107.65
  5. Step 5: Solve for x
    x = 35,668,752,107.65/273,814.80
  6. Step 6: Final answer
    x = 130,265.98

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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.