Home / 225,676.40-311,465.34-139,663.10

Finding the Fourth Proportional to 225,676.40, 311,465.34 and 139,663.10

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Solution

The fourth proportional to 225,676.40, 311,465.34 and 139,663.10 is: 192,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,676.40 : 311,465.34 = 139,663.10 : x
  2. Step 2: Convert to fraction form
    225,676.40/311,465.34 = 139,663.10/x
  3. Step 3: Cross multiply
    225,676.40x = 311,465.34 × 139,663.10
  4. Step 4: Simplify right side
    225,676.40x = 43,500,214,577.80
  5. Step 5: Solve for x
    x = 43,500,214,577.80/225,676.40
  6. Step 6: Final answer
    x = 192,754.82

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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.