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Finding the Fourth Proportional to 266,150.70, 399,226.05 and 171,672.30

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Solution

The fourth proportional to 266,150.70, 399,226.05 and 171,672.30 is: 257,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,150.70 : 399,226.05 = 171,672.30 : x
  2. Step 2: Convert to fraction form
    266,150.70/399,226.05 = 171,672.30/x
  3. Step 3: Cross multiply
    266,150.70x = 399,226.05 × 171,672.30
  4. Step 4: Simplify right side
    266,150.70x = 68,536,054,223.42
  5. Step 5: Solve for x
    x = 68,536,054,223.42/266,150.70
  6. Step 6: Final answer
    x = 257,508.45

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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.