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Finding the Fourth Proportional to 308,571.89, 462,506.49 and 193,220.30

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Solution

The fourth proportional to 308,571.89, 462,506.49 and 193,220.30 is: 289,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,571.89 : 462,506.49 = 193,220.30 : x
  2. Step 2: Convert to fraction form
    308,571.89/462,506.49 = 193,220.30/x
  3. Step 3: Cross multiply
    308,571.89x = 462,506.49 × 193,220.30
  4. Step 4: Simplify right side
    308,571.89x = 89,365,640,437.21
  5. Step 5: Solve for x
    x = 89,365,640,437.21/308,571.89
  6. Step 6: Final answer
    x = 289,610.44

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1.5x scale

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.