Home / 256,122.20-384,183.30-243,000.20

Finding the Fourth Proportional to 256,122.20, 384,183.30 and 243,000.20

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Solution

The fourth proportional to 256,122.20, 384,183.30 and 243,000.20 is: 364,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,122.20 : 384,183.30 = 243,000.20 : x
  2. Step 2: Convert to fraction form
    256,122.20/384,183.30 = 243,000.20/x
  3. Step 3: Cross multiply
    256,122.20x = 384,183.30 × 243,000.20
  4. Step 4: Simplify right side
    256,122.20x = 93,356,618,736.66
  5. Step 5: Solve for x
    x = 93,356,618,736.66/256,122.20
  6. Step 6: Final answer
    x = 364,500.30

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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.