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Finding the Fourth Proportional to 379,146.66, 568,718.37 and 154,456.98

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Solution

The fourth proportional to 379,146.66, 568,718.37 and 154,456.98 is: 231,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,146.66 : 568,718.37 = 154,456.98 : x
  2. Step 2: Convert to fraction form
    379,146.66/568,718.37 = 154,456.98/x
  3. Step 3: Cross multiply
    379,146.66x = 568,718.37 × 154,456.98
  4. Step 4: Simplify right side
    379,146.66x = 87,842,521,900.72
  5. Step 5: Solve for x
    x = 87,842,521,900.72/379,146.66
  6. Step 6: Final answer
    x = 231,684.81

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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.