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Finding the Fourth Proportional to 308,889.78, 462,580.14 and 190,398.12

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Solution

The fourth proportional to 308,889.78, 462,580.14 and 190,398.12 is: 285,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,889.78 : 462,580.14 = 190,398.12 : x
  2. Step 2: Convert to fraction form
    308,889.78/462,580.14 = 190,398.12/x
  3. Step 3: Cross multiply
    308,889.78x = 462,580.14 × 190,398.12
  4. Step 4: Simplify right side
    308,889.78x = 88,074,389,005.34
  5. Step 5: Solve for x
    x = 88,074,389,005.34/308,889.78
  6. Step 6: Final answer
    x = 285,132.09

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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.