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Finding the Fourth Proportional to 186,562, 279,843 and 68,168.80

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Solution

The fourth proportional to 186,562, 279,843 and 68,168.80 is: 102,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,562 : 279,843 = 68,168.80 : x
  2. Step 2: Convert to fraction form
    186,562/279,843 = 68,168.80/x
  3. Step 3: Cross multiply
    186,562x = 279,843 × 68,168.80
  4. Step 4: Simplify right side
    186,562x = 19,076,561,498.40
  5. Step 5: Solve for x
    x = 19,076,561,498.40/186,562
  6. Step 6: Final answer
    x = 102,253.20

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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.