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Finding the Fourth Proportional to 266,893.20, 400,339.80 and 109,234.80

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Solution

The fourth proportional to 266,893.20, 400,339.80 and 109,234.80 is: 163,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,893.20 : 400,339.80 = 109,234.80 : x
  2. Step 2: Convert to fraction form
    266,893.20/400,339.80 = 109,234.80/x
  3. Step 3: Cross multiply
    266,893.20x = 400,339.80 × 109,234.80
  4. Step 4: Simplify right side
    266,893.20x = 43,731,037,985.04
  5. Step 5: Solve for x
    x = 43,731,037,985.04/266,893.20
  6. Step 6: Final answer
    x = 163,852.20

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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.