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Finding the Fourth Proportional to 290,743.20, 436,114.80 and 150,544.80

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Solution

The fourth proportional to 290,743.20, 436,114.80 and 150,544.80 is: 225,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,743.20 : 436,114.80 = 150,544.80 : x
  2. Step 2: Convert to fraction form
    290,743.20/436,114.80 = 150,544.80/x
  3. Step 3: Cross multiply
    290,743.20x = 436,114.80 × 150,544.80
  4. Step 4: Simplify right side
    290,743.20x = 65,654,815,343.04
  5. Step 5: Solve for x
    x = 65,654,815,343.04/290,743.20
  6. Step 6: Final answer
    x = 225,817.20

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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.