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Finding the Fourth Proportional to 299,349.10, 449,023.65 and 214,930.90

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Solution

The fourth proportional to 299,349.10, 449,023.65 and 214,930.90 is: 322,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,349.10 : 449,023.65 = 214,930.90 : x
  2. Step 2: Convert to fraction form
    299,349.10/449,023.65 = 214,930.90/x
  3. Step 3: Cross multiply
    299,349.10x = 449,023.65 × 214,930.90
  4. Step 4: Simplify right side
    299,349.10x = 96,509,057,215.79
  5. Step 5: Solve for x
    x = 96,509,057,215.79/299,349.10
  6. Step 6: Final answer
    x = 322,396.35

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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.