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Finding the Fourth Proportional to 298,906, 412,490.28 and 164,772.88

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Solution

The fourth proportional to 298,906, 412,490.28 and 164,772.88 is: 227,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,906 : 412,490.28 = 164,772.88 : x
  2. Step 2: Convert to fraction form
    298,906/412,490.28 = 164,772.88/x
  3. Step 3: Cross multiply
    298,906x = 412,490.28 × 164,772.88
  4. Step 4: Simplify right side
    298,906x = 67,967,211,407.61
  5. Step 5: Solve for x
    x = 67,967,211,407.61/298,906
  6. Step 6: Final answer
    x = 227,386.57

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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.