Home / 307,721.11-424,676.53-171,781.60

Finding the Fourth Proportional to 307,721.11, 424,676.53 and 171,781.60

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Solution

The fourth proportional to 307,721.11, 424,676.53 and 171,781.60 is: 237,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,721.11 : 424,676.53 = 171,781.60 : x
  2. Step 2: Convert to fraction form
    307,721.11/424,676.53 = 171,781.60/x
  3. Step 3: Cross multiply
    307,721.11x = 424,676.53 × 171,781.60
  4. Step 4: Simplify right side
    307,721.11x = 72,951,613,805.85
  5. Step 5: Solve for x
    x = 72,951,613,805.85/307,721.11
  6. Step 6: Final answer
    x = 237,070.55

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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.