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Finding the Fourth Proportional to 186,918.40, 280,377.60 and 179,660.80

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Solution

The fourth proportional to 186,918.40, 280,377.60 and 179,660.80 is: 269,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,918.40 : 280,377.60 = 179,660.80 : x
  2. Step 2: Convert to fraction form
    186,918.40/280,377.60 = 179,660.80/x
  3. Step 3: Cross multiply
    186,918.40x = 280,377.60 × 179,660.80
  4. Step 4: Simplify right side
    186,918.40x = 50,372,863,918.08
  5. Step 5: Solve for x
    x = 50,372,863,918.08/186,918.40
  6. Step 6: Final answer
    x = 269,491.20

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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.