Home / 352,130.20-528,195.30-219,419.80

Finding the Fourth Proportional to 352,130.20, 528,195.30 and 219,419.80

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Solution

The fourth proportional to 352,130.20, 528,195.30 and 219,419.80 is: 329,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,130.20 : 528,195.30 = 219,419.80 : x
  2. Step 2: Convert to fraction form
    352,130.20/528,195.30 = 219,419.80/x
  3. Step 3: Cross multiply
    352,130.20x = 528,195.30 × 219,419.80
  4. Step 4: Simplify right side
    352,130.20x = 115,896,507,086.94
  5. Step 5: Solve for x
    x = 115,896,507,086.94/352,130.20
  6. Step 6: Final answer
    x = 329,129.70

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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.