Home / 352,087.20-528,286.32-142,135.20

Finding the Fourth Proportional to 352,087.20, 528,286.32 and 142,135.20

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Solution

The fourth proportional to 352,087.20, 528,286.32 and 142,135.20 is: 213,265.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,087.20 : 528,286.32 = 142,135.20 : x
  2. Step 2: Convert to fraction form
    352,087.20/528,286.32 = 142,135.20/x
  3. Step 3: Cross multiply
    352,087.20x = 528,286.32 × 142,135.20
  4. Step 4: Simplify right side
    352,087.20x = 75,088,081,750.46
  5. Step 5: Solve for x
    x = 75,088,081,750.46/352,087.20
  6. Step 6: Final answer
    x = 213,265.58

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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.