Home / 256,650.20-384,246.30-242,685.80

Finding the Fourth Proportional to 256,650.20, 384,246.30 and 242,685.80

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Solution

The fourth proportional to 256,650.20, 384,246.30 and 242,685.80 is: 363,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,650.20 : 384,246.30 = 242,685.80 : x
  2. Step 2: Convert to fraction form
    256,650.20/384,246.30 = 242,685.80/x
  3. Step 3: Cross multiply
    256,650.20x = 384,246.30 × 242,685.80
  4. Step 4: Simplify right side
    256,650.20x = 93,251,120,712.54
  5. Step 5: Solve for x
    x = 93,251,120,712.54/256,650.20
  6. Step 6: Final answer
    x = 363,339.37

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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.