Home / 225,780.69-311,580.87-123,815.46

Finding the Fourth Proportional to 225,780.69, 311,580.87 and 123,815.46

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Solution

The fourth proportional to 225,780.69, 311,580.87 and 123,815.46 is: 170,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,780.69 : 311,580.87 = 123,815.46 : x
  2. Step 2: Convert to fraction form
    225,780.69/311,580.87 = 123,815.46/x
  3. Step 3: Cross multiply
    225,780.69x = 311,580.87 × 123,815.46
  4. Step 4: Simplify right side
    225,780.69x = 38,578,528,746.25
  5. Step 5: Solve for x
    x = 38,578,528,746.25/225,780.69
  6. Step 6: Final answer
    x = 170,867.26

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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.