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Finding the Fourth Proportional to 299,720.20, 449,580.30 and 262,856.20

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Solution

The fourth proportional to 299,720.20, 449,580.30 and 262,856.20 is: 394,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,720.20 : 449,580.30 = 262,856.20 : x
  2. Step 2: Convert to fraction form
    299,720.20/449,580.30 = 262,856.20/x
  3. Step 3: Cross multiply
    299,720.20x = 449,580.30 × 262,856.20
  4. Step 4: Simplify right side
    299,720.20x = 118,174,969,252.86
  5. Step 5: Solve for x
    x = 118,174,969,252.86/299,720.20
  6. Step 6: Final answer
    x = 394,284.30

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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.