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Finding the Fourth Proportional to 345,884.60, 519,045.60 and 203,729.60

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Solution

The fourth proportional to 345,884.60, 519,045.60 and 203,729.60 is: 305,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,884.60 : 519,045.60 = 203,729.60 : x
  2. Step 2: Convert to fraction form
    345,884.60/519,045.60 = 203,729.60/x
  3. Step 3: Cross multiply
    345,884.60x = 519,045.60 × 203,729.60
  4. Step 4: Simplify right side
    345,884.60x = 105,744,952,469.76
  5. Step 5: Solve for x
    x = 105,744,952,469.76/345,884.60
  6. Step 6: Final answer
    x = 305,723.22

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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.