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Finding the Fourth Proportional to 186,427.20, 279,640.80 and 186,427.20

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Solution

The fourth proportional to 186,427.20, 279,640.80 and 186,427.20 is: 279,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,427.20 : 279,640.80 = 186,427.20 : x
  2. Step 2: Convert to fraction form
    186,427.20/279,640.80 = 186,427.20/x
  3. Step 3: Cross multiply
    186,427.20x = 279,640.80 × 186,427.20
  4. Step 4: Simplify right side
    186,427.20x = 52,132,651,349.76
  5. Step 5: Solve for x
    x = 52,132,651,349.76/186,427.20
  6. Step 6: Final answer
    x = 279,640.80

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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.