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Finding the Fourth Proportional to 269,139.40, 404,583.90 and 190,796.20

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Solution

The fourth proportional to 269,139.40, 404,583.90 and 190,796.20 is: 286,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,139.40 : 404,583.90 = 190,796.20 : x
  2. Step 2: Convert to fraction form
    269,139.40/404,583.90 = 190,796.20/x
  3. Step 3: Cross multiply
    269,139.40x = 404,583.90 × 190,796.20
  4. Step 4: Simplify right side
    269,139.40x = 77,193,070,701.18
  5. Step 5: Solve for x
    x = 77,193,070,701.18/269,139.40
  6. Step 6: Final answer
    x = 286,814.46

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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.