Home / 218,994.38-328,389.35-113,785.10

Finding the Fourth Proportional to 218,994.38, 328,389.35 and 113,785.10

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Solution

The fourth proportional to 218,994.38, 328,389.35 and 113,785.10 is: 170,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,994.38 : 328,389.35 = 113,785.10 : x
  2. Step 2: Convert to fraction form
    218,994.38/328,389.35 = 113,785.10/x
  3. Step 3: Cross multiply
    218,994.38x = 328,389.35 × 113,785.10
  4. Step 4: Simplify right side
    218,994.38x = 37,365,815,028.69
  5. Step 5: Solve for x
    x = 37,365,815,028.69/218,994.38
  6. Step 6: Final answer
    x = 170,624.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.