Home / 225,888.06-311,673.20-135,209.55

Finding the Fourth Proportional to 225,888.06, 311,673.20 and 135,209.55

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Solution

The fourth proportional to 225,888.06, 311,673.20 and 135,209.55 is: 186,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,888.06 : 311,673.20 = 135,209.55 : x
  2. Step 2: Convert to fraction form
    225,888.06/311,673.20 = 135,209.55/x
  3. Step 3: Cross multiply
    225,888.06x = 311,673.20 × 135,209.55
  4. Step 4: Simplify right side
    225,888.06x = 42,141,192,443.01
  5. Step 5: Solve for x
    x = 42,141,192,443.01/225,888.06
  6. Step 6: Final answer
    x = 186,557.86

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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.