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Finding the Fourth Proportional to 266,675, 400,012.88 and 108,903.45

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Solution

The fourth proportional to 266,675, 400,012.88 and 108,903.45 is: 163,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,675 : 400,012.88 = 108,903.45 : x
  2. Step 2: Convert to fraction form
    266,675/400,012.88 = 108,903.45/x
  3. Step 3: Cross multiply
    266,675x = 400,012.88 × 108,903.45
  4. Step 4: Simplify right side
    266,675x = 43,562,782,676.44
  5. Step 5: Solve for x
    x = 43,562,782,676.44/266,675
  6. Step 6: Final answer
    x = 163,355.33

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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.