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Finding the Fourth Proportional to 254,234.20, 381,351.30 and 251,901.40

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Solution

The fourth proportional to 254,234.20, 381,351.30 and 251,901.40 is: 377,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,234.20 : 381,351.30 = 251,901.40 : x
  2. Step 2: Convert to fraction form
    254,234.20/381,351.30 = 251,901.40/x
  3. Step 3: Cross multiply
    254,234.20x = 381,351.30 × 251,901.40
  4. Step 4: Simplify right side
    254,234.20x = 96,062,926,361.82
  5. Step 5: Solve for x
    x = 96,062,926,361.82/254,234.20
  6. Step 6: Final answer
    x = 377,852.10

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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.