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Finding the Fourth Proportional to 362,243.20, 543,364.80 and 220,525.60

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Solution

The fourth proportional to 362,243.20, 543,364.80 and 220,525.60 is: 330,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,243.20 : 543,364.80 = 220,525.60 : x
  2. Step 2: Convert to fraction form
    362,243.20/543,364.80 = 220,525.60/x
  3. Step 3: Cross multiply
    362,243.20x = 543,364.80 × 220,525.60
  4. Step 4: Simplify right side
    362,243.20x = 119,825,848,538.88
  5. Step 5: Solve for x
    x = 119,825,848,538.88/362,243.20
  6. Step 6: Final answer
    x = 330,788.40

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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.