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Finding the Fourth Proportional to 266,395.42, 399,593.13 and 108,636.18

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Solution

The fourth proportional to 266,395.42, 399,593.13 and 108,636.18 is: 162,954.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,395.42 : 399,593.13 = 108,636.18 : x
  2. Step 2: Convert to fraction form
    266,395.42/399,593.13 = 108,636.18/x
  3. Step 3: Cross multiply
    266,395.42x = 399,593.13 × 108,636.18
  4. Step 4: Simplify right side
    266,395.42x = 43,410,271,197.44
  5. Step 5: Solve for x
    x = 43,410,271,197.44/266,395.42
  6. Step 6: Final answer
    x = 162,954.27

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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.