Home / 254,455.20-381,682.80-252,122.40

Finding the Fourth Proportional to 254,455.20, 381,682.80 and 252,122.40

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Solution

The fourth proportional to 254,455.20, 381,682.80 and 252,122.40 is: 378,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,455.20 : 381,682.80 = 252,122.40 : x
  2. Step 2: Convert to fraction form
    254,455.20/381,682.80 = 252,122.40/x
  3. Step 3: Cross multiply
    254,455.20x = 381,682.80 × 252,122.40
  4. Step 4: Simplify right side
    254,455.20x = 96,230,783,574.72
  5. Step 5: Solve for x
    x = 96,230,783,574.72/254,455.20
  6. Step 6: Final answer
    x = 378,183.60

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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.