Home / 226,760.14-312,941.91-129,980.09

Finding the Fourth Proportional to 226,760.14, 312,941.91 and 129,980.09

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Solution

The fourth proportional to 226,760.14, 312,941.91 and 129,980.09 is: 179,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,760.14 : 312,941.91 = 129,980.09 : x
  2. Step 2: Convert to fraction form
    226,760.14/312,941.91 = 129,980.09/x
  3. Step 3: Cross multiply
    226,760.14x = 312,941.91 × 129,980.09
  4. Step 4: Simplify right side
    226,760.14x = 40,676,218,896.35
  5. Step 5: Solve for x
    x = 40,676,218,896.35/226,760.14
  6. Step 6: Final answer
    x = 179,379.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.