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Finding the Fourth Proportional to 186,490.20, 279,405.90 and 180,323.40

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Solution

The fourth proportional to 186,490.20, 279,405.90 and 180,323.40 is: 270,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,490.20 : 279,405.90 = 180,323.40 : x
  2. Step 2: Convert to fraction form
    186,490.20/279,405.90 = 180,323.40/x
  3. Step 3: Cross multiply
    186,490.20x = 279,405.90 × 180,323.40
  4. Step 4: Simplify right side
    186,490.20x = 50,383,421,868.06
  5. Step 5: Solve for x
    x = 50,383,421,868.06/186,490.20
  6. Step 6: Final answer
    x = 270,166.59

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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.