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Finding the Fourth Proportional to 269,996.71, 372,588.31 and 149,135.40

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Solution

The fourth proportional to 269,996.71, 372,588.31 and 149,135.40 is: 205,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,996.71 : 372,588.31 = 149,135.40 : x
  2. Step 2: Convert to fraction form
    269,996.71/372,588.31 = 149,135.40/x
  3. Step 3: Cross multiply
    269,996.71x = 372,588.31 × 149,135.40
  4. Step 4: Simplify right side
    269,996.71x = 55,566,106,647.17
  5. Step 5: Solve for x
    x = 55,566,106,647.17/269,996.71
  6. Step 6: Final answer
    x = 205,802.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.