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Finding the Fourth Proportional to 305,887.93, 422,192.81 and 169,968.58

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Solution

The fourth proportional to 305,887.93, 422,192.81 and 169,968.58 is: 234,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,887.93 : 422,192.81 = 169,968.58 : x
  2. Step 2: Convert to fraction form
    305,887.93/422,192.81 = 169,968.58/x
  3. Step 3: Cross multiply
    305,887.93x = 422,192.81 × 169,968.58
  4. Step 4: Simplify right side
    305,887.93x = 71,759,512,401.91
  5. Step 5: Solve for x
    x = 71,759,512,401.91/305,887.93
  6. Step 6: Final answer
    x = 234,594.13

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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.