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Finding the Fourth Proportional to 362,458.20, 543,760.20 and 303,700.80

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Solution

The fourth proportional to 362,458.20, 543,760.20 and 303,700.80 is: 455,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,458.20 : 543,760.20 = 303,700.80 : x
  2. Step 2: Convert to fraction form
    362,458.20/543,760.20 = 303,700.80/x
  3. Step 3: Cross multiply
    362,458.20x = 543,760.20 × 303,700.80
  4. Step 4: Simplify right side
    362,458.20x = 165,140,407,748.16
  5. Step 5: Solve for x
    x = 165,140,407,748.16/362,458.20
  6. Step 6: Final answer
    x = 455,612.28

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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.