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Finding the Fourth Proportional to 381,868.80, 573,415.20 and 303,633.60

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Solution

The fourth proportional to 381,868.80, 573,415.20 and 303,633.60 is: 455,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,868.80 : 573,415.20 = 303,633.60 : x
  2. Step 2: Convert to fraction form
    381,868.80/573,415.20 = 303,633.60/x
  3. Step 3: Cross multiply
    381,868.80x = 573,415.20 × 303,633.60
  4. Step 4: Simplify right side
    381,868.80x = 174,108,121,470.72
  5. Step 5: Solve for x
    x = 174,108,121,470.72/381,868.80
  6. Step 6: Final answer
    x = 455,937.02

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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.