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Finding the Fourth Proportional to 266,150.20, 399,225.30 and 213,662.20

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Solution

The fourth proportional to 266,150.20, 399,225.30 and 213,662.20 is: 320,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,150.20 : 399,225.30 = 213,662.20 : x
  2. Step 2: Convert to fraction form
    266,150.20/399,225.30 = 213,662.20/x
  3. Step 3: Cross multiply
    266,150.20x = 399,225.30 × 213,662.20
  4. Step 4: Simplify right side
    266,150.20x = 85,299,355,893.66
  5. Step 5: Solve for x
    x = 85,299,355,893.66/266,150.20
  6. Step 6: Final answer
    x = 320,493.30

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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.