Home / 300,829.03-451,145.12-140,855.45

Finding the Fourth Proportional to 300,829.03, 451,145.12 and 140,855.45

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Solution

The fourth proportional to 300,829.03, 451,145.12 and 140,855.45 is: 211,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,829.03 : 451,145.12 = 140,855.45 : x
  2. Step 2: Convert to fraction form
    300,829.03/451,145.12 = 140,855.45/x
  3. Step 3: Cross multiply
    300,829.03x = 451,145.12 × 140,855.45
  4. Step 4: Simplify right side
    300,829.03x = 63,546,248,892.90
  5. Step 5: Solve for x
    x = 63,546,248,892.90/300,829.03
  6. Step 6: Final answer
    x = 211,237.09

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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.