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Finding the Fourth Proportional to 235,136.80, 352,705.20 and 231,637.60

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Solution

The fourth proportional to 235,136.80, 352,705.20 and 231,637.60 is: 347,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,136.80 : 352,705.20 = 231,637.60 : x
  2. Step 2: Convert to fraction form
    235,136.80/352,705.20 = 231,637.60/x
  3. Step 3: Cross multiply
    235,136.80x = 352,705.20 × 231,637.60
  4. Step 4: Simplify right side
    235,136.80x = 81,699,786,035.52
  5. Step 5: Solve for x
    x = 81,699,786,035.52/235,136.80
  6. Step 6: Final answer
    x = 347,456.40

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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.