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Finding the Fourth Proportional to 343,545.26, 515,076.46 and 151,328.48

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Solution

The fourth proportional to 343,545.26, 515,076.46 and 151,328.48 is: 226,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,545.26 : 515,076.46 = 151,328.48 : x
  2. Step 2: Convert to fraction form
    343,545.26/515,076.46 = 151,328.48/x
  3. Step 3: Cross multiply
    343,545.26x = 515,076.46 × 151,328.48
  4. Step 4: Simplify right side
    343,545.26x = 77,945,737,775.58
  5. Step 5: Solve for x
    x = 77,945,737,775.58/343,545.26
  6. Step 6: Final answer
    x = 226,886.37

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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.