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Finding the Fourth Proportional to 269,224.70, 403,837.05 and 91,931.90

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Solution

The fourth proportional to 269,224.70, 403,837.05 and 91,931.90 is: 137,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,224.70 : 403,837.05 = 91,931.90 : x
  2. Step 2: Convert to fraction form
    269,224.70/403,837.05 = 91,931.90/x
  3. Step 3: Cross multiply
    269,224.70x = 403,837.05 × 91,931.90
  4. Step 4: Simplify right side
    269,224.70x = 37,125,507,296.90
  5. Step 5: Solve for x
    x = 37,125,507,296.90/269,224.70
  6. Step 6: Final answer
    x = 137,897.85

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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.