Home / 312,910.09-469,086.80-113,186.03

Finding the Fourth Proportional to 312,910.09, 469,086.80 and 113,186.03

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Solution

The fourth proportional to 312,910.09, 469,086.80 and 113,186.03 is: 169,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,910.09 : 469,086.80 = 113,186.03 : x
  2. Step 2: Convert to fraction form
    312,910.09/469,086.80 = 113,186.03/x
  3. Step 3: Cross multiply
    312,910.09x = 469,086.80 × 113,186.03
  4. Step 4: Simplify right side
    312,910.09x = 53,094,069,706.04
  5. Step 5: Solve for x
    x = 53,094,069,706.04/312,910.09
  6. Step 6: Final answer
    x = 169,678.36

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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.