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Finding the Fourth Proportional to 515,855.30, 773,892.30 and 155,996.60

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Solution

The fourth proportional to 515,855.30, 773,892.30 and 155,996.60 is: 234,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,855.30 : 773,892.30 = 155,996.60 : x
  2. Step 2: Convert to fraction form
    515,855.30/773,892.30 = 155,996.60/x
  3. Step 3: Cross multiply
    515,855.30x = 773,892.30 × 155,996.60
  4. Step 4: Simplify right side
    515,855.30x = 120,724,567,566.18
  5. Step 5: Solve for x
    x = 120,724,567,566.18/515,855.30
  6. Step 6: Final answer
    x = 234,027.97

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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.