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Finding the Fourth Proportional to 312,599.97, 431,388.39 and 169,360.02

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Solution

The fourth proportional to 312,599.97, 431,388.39 and 169,360.02 is: 233,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,599.97 : 431,388.39 = 169,360.02 : x
  2. Step 2: Convert to fraction form
    312,599.97/431,388.39 = 169,360.02/x
  3. Step 3: Cross multiply
    312,599.97x = 431,388.39 × 169,360.02
  4. Step 4: Simplify right side
    312,599.97x = 73,059,946,358.17
  5. Step 5: Solve for x
    x = 73,059,946,358.17/312,599.97
  6. Step 6: Final answer
    x = 233,717.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.