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Finding the Fourth Proportional to 270,007.98, 405,055.17 and 136,834.26

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Solution

The fourth proportional to 270,007.98, 405,055.17 and 136,834.26 is: 205,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,007.98 : 405,055.17 = 136,834.26 : x
  2. Step 2: Convert to fraction form
    270,007.98/405,055.17 = 136,834.26/x
  3. Step 3: Cross multiply
    270,007.98x = 405,055.17 × 136,834.26
  4. Step 4: Simplify right side
    270,007.98x = 55,425,424,446.12
  5. Step 5: Solve for x
    x = 55,425,424,446.12/270,007.98
  6. Step 6: Final answer
    x = 205,273.28

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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.