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Finding the Fourth Proportional to 387,948.49, 582,006.49 and 118,097.73

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Solution

The fourth proportional to 387,948.49, 582,006.49 and 118,097.73 is: 177,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,948.49 : 582,006.49 = 118,097.73 : x
  2. Step 2: Convert to fraction form
    387,948.49/582,006.49 = 118,097.73/x
  3. Step 3: Cross multiply
    387,948.49x = 582,006.49 × 118,097.73
  4. Step 4: Simplify right side
    387,948.49x = 68,733,645,019.02
  5. Step 5: Solve for x
    x = 68,733,645,019.02/387,948.49
  6. Step 6: Final answer
    x = 177,172.09

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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.