Home / 263,607.20-395,439.60-255,312.80

Finding the Fourth Proportional to 263,607.20, 395,439.60 and 255,312.80

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Solution

The fourth proportional to 263,607.20, 395,439.60 and 255,312.80 is: 382,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,607.20 : 395,439.60 = 255,312.80 : x
  2. Step 2: Convert to fraction form
    263,607.20/395,439.60 = 255,312.80/x
  3. Step 3: Cross multiply
    263,607.20x = 395,439.60 × 255,312.80
  4. Step 4: Simplify right side
    263,607.20x = 100,960,791,506.88
  5. Step 5: Solve for x
    x = 100,960,791,506.88/263,607.20
  6. Step 6: Final answer
    x = 382,997.09

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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.