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Finding the Fourth Proportional to 195,676.10, 270,028.20 and 109,638.68

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Solution

The fourth proportional to 195,676.10, 270,028.20 and 109,638.68 is: 151,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,676.10 : 270,028.20 = 109,638.68 : x
  2. Step 2: Convert to fraction form
    195,676.10/270,028.20 = 109,638.68/x
  3. Step 3: Cross multiply
    195,676.10x = 270,028.20 × 109,638.68
  4. Step 4: Simplify right side
    195,676.10x = 29,605,535,410.78
  5. Step 5: Solve for x
    x = 29,605,535,410.78/195,676.10
  6. Step 6: Final answer
    x = 151,298.68

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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.