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Finding the Fourth Proportional to 266,522.20, 399,264.90 and 161,027.80

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Solution

The fourth proportional to 266,522.20, 399,264.90 and 161,027.80 is: 241,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,522.20 : 399,264.90 = 161,027.80 : x
  2. Step 2: Convert to fraction form
    266,522.20/399,264.90 = 161,027.80/x
  3. Step 3: Cross multiply
    266,522.20x = 399,264.90 × 161,027.80
  4. Step 4: Simplify right side
    266,522.20x = 64,292,748,464.22
  5. Step 5: Solve for x
    x = 64,292,748,464.22/266,522.20
  6. Step 6: Final answer
    x = 241,228.49

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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.