Home / 226,243.15-312,203.36-129,448.89

Finding the Fourth Proportional to 226,243.15, 312,203.36 and 129,448.89

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Solution

The fourth proportional to 226,243.15, 312,203.36 and 129,448.89 is: 178,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,243.15 : 312,203.36 = 129,448.89 : x
  2. Step 2: Convert to fraction form
    226,243.15/312,203.36 = 129,448.89/x
  3. Step 3: Cross multiply
    226,243.15x = 312,203.36 × 129,448.89
  4. Step 4: Simplify right side
    226,243.15x = 40,414,378,729.89
  5. Step 5: Solve for x
    x = 40,414,378,729.89/226,243.15
  6. Step 6: Final answer
    x = 178,632.50

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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.