Home / 340,919.15-511,375.34-130,557.09

Finding the Fourth Proportional to 340,919.15, 511,375.34 and 130,557.09

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Solution

The fourth proportional to 340,919.15, 511,375.34 and 130,557.09 is: 195,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,919.15 : 511,375.34 = 130,557.09 : x
  2. Step 2: Convert to fraction form
    340,919.15/511,375.34 = 130,557.09/x
  3. Step 3: Cross multiply
    340,919.15x = 511,375.34 × 130,557.09
  4. Step 4: Simplify right side
    340,919.15x = 66,763,673,731.28
  5. Step 5: Solve for x
    x = 66,763,673,731.28/340,919.15
  6. Step 6: Final answer
    x = 195,834.33

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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.