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Finding the Fourth Proportional to 266,424.20, 399,636.30 and 192,066.20

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Solution

The fourth proportional to 266,424.20, 399,636.30 and 192,066.20 is: 288,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,424.20 : 399,636.30 = 192,066.20 : x
  2. Step 2: Convert to fraction form
    266,424.20/399,636.30 = 192,066.20/x
  3. Step 3: Cross multiply
    266,424.20x = 399,636.30 × 192,066.20
  4. Step 4: Simplify right side
    266,424.20x = 76,756,625,523.06
  5. Step 5: Solve for x
    x = 76,756,625,523.06/266,424.20
  6. Step 6: Final answer
    x = 288,099.30

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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.