Home / 245,910.48-339,353.04-138,481.76

Finding the Fourth Proportional to 245,910.48, 339,353.04 and 138,481.76

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Solution

The fourth proportional to 245,910.48, 339,353.04 and 138,481.76 is: 191,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,910.48 : 339,353.04 = 138,481.76 : x
  2. Step 2: Convert to fraction form
    245,910.48/339,353.04 = 138,481.76/x
  3. Step 3: Cross multiply
    245,910.48x = 339,353.04 × 138,481.76
  4. Step 4: Simplify right side
    245,910.48x = 46,994,206,240.55
  5. Step 5: Solve for x
    x = 46,994,206,240.55/245,910.48
  6. Step 6: Final answer
    x = 191,102.90

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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.