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Finding the Fourth Proportional to 266,689.69, 400,003.73 and 66,994.89

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Solution

The fourth proportional to 266,689.69, 400,003.73 and 66,994.89 is: 100,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,689.69 : 400,003.73 = 66,994.89 : x
  2. Step 2: Convert to fraction form
    266,689.69/400,003.73 = 66,994.89/x
  3. Step 3: Cross multiply
    266,689.69x = 400,003.73 × 66,994.89
  4. Step 4: Simplify right side
    266,689.69x = 26,798,205,890.94
  5. Step 5: Solve for x
    x = 26,798,205,890.94/266,689.69
  6. Step 6: Final answer
    x = 100,484.60

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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.