Home / 225,734.72-311,545.64-139,721.29

Finding the Fourth Proportional to 225,734.72, 311,545.64 and 139,721.29

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Solution

The fourth proportional to 225,734.72, 311,545.64 and 139,721.29 is: 192,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,734.72 : 311,545.64 = 139,721.29 : x
  2. Step 2: Convert to fraction form
    225,734.72/311,545.64 = 139,721.29/x
  3. Step 3: Cross multiply
    225,734.72x = 311,545.64 × 139,721.29
  4. Step 4: Simplify right side
    225,734.72x = 43,529,558,285.11
  5. Step 5: Solve for x
    x = 43,529,558,285.11/225,734.72
  6. Step 6: Final answer
    x = 192,835.02

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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.