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Finding the Fourth Proportional to 352,564.80, 529,149.60 and 142,353.60

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Solution

The fourth proportional to 352,564.80, 529,149.60 and 142,353.60 is: 213,652.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,564.80 : 529,149.60 = 142,353.60 : x
  2. Step 2: Convert to fraction form
    352,564.80/529,149.60 = 142,353.60/x
  3. Step 3: Cross multiply
    352,564.80x = 529,149.60 × 142,353.60
  4. Step 4: Simplify right side
    352,564.80x = 75,326,350,498.56
  5. Step 5: Solve for x
    x = 75,326,350,498.56/352,564.80
  6. Step 6: Final answer
    x = 213,652.50

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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.