Home / 225,383.55-311,028.15-123,407.16

Finding the Fourth Proportional to 225,383.55, 311,028.15 and 123,407.16

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Solution

The fourth proportional to 225,383.55, 311,028.15 and 123,407.16 is: 170,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,383.55 : 311,028.15 = 123,407.16 : x
  2. Step 2: Convert to fraction form
    225,383.55/311,028.15 = 123,407.16/x
  3. Step 3: Cross multiply
    225,383.55x = 311,028.15 × 123,407.16
  4. Step 4: Simplify right side
    225,383.55x = 38,383,099,116.41
  5. Step 5: Solve for x
    x = 38,383,099,116.41/225,383.55
  6. Step 6: Final answer
    x = 170,301.25

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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.