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Finding the Fourth Proportional to 266,991.89, 400,547.81 and 89,494.35

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Solution

The fourth proportional to 266,991.89, 400,547.81 and 89,494.35 is: 134,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,991.89 : 400,547.81 = 89,494.35 : x
  2. Step 2: Convert to fraction form
    266,991.89/400,547.81 = 89,494.35/x
  3. Step 3: Cross multiply
    266,991.89x = 400,547.81 × 89,494.35
  4. Step 4: Simplify right side
    266,991.89x = 35,846,765,452.40
  5. Step 5: Solve for x
    x = 35,846,765,452.40/266,991.89
  6. Step 6: Final answer
    x = 134,261.63

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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.