Home / 352,919.20-529,587.12-139,708

Finding the Fourth Proportional to 352,919.20, 529,587.12 and 139,708

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Solution

The fourth proportional to 352,919.20, 529,587.12 and 139,708 is: 209,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,919.20 : 529,587.12 = 139,708 : x
  2. Step 2: Convert to fraction form
    352,919.20/529,587.12 = 139,708/x
  3. Step 3: Cross multiply
    352,919.20x = 529,587.12 × 139,708
  4. Step 4: Simplify right side
    352,919.20x = 73,987,557,360.96
  5. Step 5: Solve for x
    x = 73,987,557,360.96/352,919.20
  6. Step 6: Final answer
    x = 209,644.47

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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.