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Finding the Fourth Proportional to 307,377, 424,193.22 and 173,241

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Solution

The fourth proportional to 307,377, 424,193.22 and 173,241 is: 239,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,377 : 424,193.22 = 173,241 : x
  2. Step 2: Convert to fraction form
    307,377/424,193.22 = 173,241/x
  3. Step 3: Cross multiply
    307,377x = 424,193.22 × 173,241
  4. Step 4: Simplify right side
    307,377x = 73,487,657,626.02
  5. Step 5: Solve for x
    x = 73,487,657,626.02/307,377
  6. Step 6: Final answer
    x = 239,079.88

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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.