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Finding the Fourth Proportional to 290,745.20, 436,117.80 and 150,546.80

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Solution

The fourth proportional to 290,745.20, 436,117.80 and 150,546.80 is: 225,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,745.20 : 436,117.80 = 150,546.80 : x
  2. Step 2: Convert to fraction form
    290,745.20/436,117.80 = 150,546.80/x
  3. Step 3: Cross multiply
    290,745.20x = 436,117.80 × 150,546.80
  4. Step 4: Simplify right side
    290,745.20x = 65,656,139,213.04
  5. Step 5: Solve for x
    x = 65,656,139,213.04/290,745.20
  6. Step 6: Final answer
    x = 225,820.20

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1.5x scale

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.