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Finding the Fourth Proportional to 266,415.27, 399,613.68 and 66,737.37

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Solution

The fourth proportional to 266,415.27, 399,613.68 and 66,737.37 is: 100,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,415.27 : 399,613.68 = 66,737.37 : x
  2. Step 2: Convert to fraction form
    266,415.27/399,613.68 = 66,737.37/x
  3. Step 3: Cross multiply
    266,415.27x = 399,613.68 × 66,737.37
  4. Step 4: Simplify right side
    266,415.27x = 26,669,166,019.22
  5. Step 5: Solve for x
    x = 26,669,166,019.22/266,415.27
  6. Step 6: Final answer
    x = 100,103.74

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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.