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Finding the Fourth Proportional to 371,556.72, 557,335.08 and 161,190

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Solution

The fourth proportional to 371,556.72, 557,335.08 and 161,190 is: 241,785

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,556.72 : 557,335.08 = 161,190 : x
  2. Step 2: Convert to fraction form
    371,556.72/557,335.08 = 161,190/x
  3. Step 3: Cross multiply
    371,556.72x = 557,335.08 × 161,190
  4. Step 4: Simplify right side
    371,556.72x = 89,836,841,545.20
  5. Step 5: Solve for x
    x = 89,836,841,545.20/371,556.72
  6. Step 6: Final answer
    x = 241,785

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.