Home / 225,516.34-311,212.68-123,545.51

Finding the Fourth Proportional to 225,516.34, 311,212.68 and 123,545.51

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Solution

The fourth proportional to 225,516.34, 311,212.68 and 123,545.51 is: 170,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,516.34 : 311,212.68 = 123,545.51 : x
  2. Step 2: Convert to fraction form
    225,516.34/311,212.68 = 123,545.51/x
  3. Step 3: Cross multiply
    225,516.34x = 311,212.68 × 123,545.51
  4. Step 4: Simplify right side
    225,516.34x = 38,448,927,713.00
  5. Step 5: Solve for x
    x = 38,448,927,713.00/225,516.34
  6. Step 6: Final answer
    x = 170,492.87

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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.