Home / 225,374.19-311,016.45-123,406.11

Finding the Fourth Proportional to 225,374.19, 311,016.45 and 123,406.11

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Solution

The fourth proportional to 225,374.19, 311,016.45 and 123,406.11 is: 170,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,374.19 : 311,016.45 = 123,406.11 : x
  2. Step 2: Convert to fraction form
    225,374.19/311,016.45 = 123,406.11/x
  3. Step 3: Cross multiply
    225,374.19x = 311,016.45 × 123,406.11
  4. Step 4: Simplify right side
    225,374.19x = 38,381,330,240.51
  5. Step 5: Solve for x
    x = 38,381,330,240.51/225,374.19
  6. Step 6: Final answer
    x = 170,300.47

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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.