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Finding the Fourth Proportional to 302,725.44, 417,666.78 and 171,881.28

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Solution

The fourth proportional to 302,725.44, 417,666.78 and 171,881.28 is: 237,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,725.44 : 417,666.78 = 171,881.28 : x
  2. Step 2: Convert to fraction form
    302,725.44/417,666.78 = 171,881.28/x
  3. Step 3: Cross multiply
    302,725.44x = 417,666.78 × 171,881.28
  4. Step 4: Simplify right side
    302,725.44x = 71,789,100,759.88
  5. Step 5: Solve for x
    x = 71,789,100,759.88/302,725.44
  6. Step 6: Final answer
    x = 237,142.61

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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.