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Finding the Fourth Proportional to 362,121.60, 543,255.30 and 125,415.30

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Solution

The fourth proportional to 362,121.60, 543,255.30 and 125,415.30 is: 188,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,121.60 : 543,255.30 = 125,415.30 : x
  2. Step 2: Convert to fraction form
    362,121.60/543,255.30 = 125,415.30/x
  3. Step 3: Cross multiply
    362,121.60x = 543,255.30 × 125,415.30
  4. Step 4: Simplify right side
    362,121.60x = 68,132,526,426.09
  5. Step 5: Solve for x
    x = 68,132,526,426.09/362,121.60
  6. Step 6: Final answer
    x = 188,148.20

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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.