Home / 352,764.30-528,628.05-142,034.70

Finding the Fourth Proportional to 352,764.30, 528,628.05 and 142,034.70

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Solution

The fourth proportional to 352,764.30, 528,628.05 and 142,034.70 is: 212,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,764.30 : 528,628.05 = 142,034.70 : x
  2. Step 2: Convert to fraction form
    352,764.30/528,628.05 = 142,034.70/x
  3. Step 3: Cross multiply
    352,764.30x = 528,628.05 × 142,034.70
  4. Step 4: Simplify right side
    352,764.30x = 75,083,526,493.34
  5. Step 5: Solve for x
    x = 75,083,526,493.34/352,764.30
  6. Step 6: Final answer
    x = 212,843.32

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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.