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Finding the Fourth Proportional to 302,755, 417,801.90 and 168,619

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Solution

The fourth proportional to 302,755, 417,801.90 and 168,619 is: 232,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,755 : 417,801.90 = 168,619 : x
  2. Step 2: Convert to fraction form
    302,755/417,801.90 = 168,619/x
  3. Step 3: Cross multiply
    302,755x = 417,801.90 × 168,619
  4. Step 4: Simplify right side
    302,755x = 70,449,338,576.10
  5. Step 5: Solve for x
    x = 70,449,338,576.10/302,755
  6. Step 6: Final answer
    x = 232,694.22

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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.