Home / 338,103.06-507,249.39-135,841.20

Finding the Fourth Proportional to 338,103.06, 507,249.39 and 135,841.20

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Solution

The fourth proportional to 338,103.06, 507,249.39 and 135,841.20 is: 203,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,103.06 : 507,249.39 = 135,841.20 : x
  2. Step 2: Convert to fraction form
    338,103.06/507,249.39 = 135,841.20/x
  3. Step 3: Cross multiply
    338,103.06x = 507,249.39 × 135,841.20
  4. Step 4: Simplify right side
    338,103.06x = 68,905,366,533.26
  5. Step 5: Solve for x
    x = 68,905,366,533.26/338,103.06
  6. Step 6: Final answer
    x = 203,799.89

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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.