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Finding the Fourth Proportional to 270,007.53, 405,265.53 and 136,983.26

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Solution

The fourth proportional to 270,007.53, 405,265.53 and 136,983.26 is: 205,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,007.53 : 405,265.53 = 136,983.26 : x
  2. Step 2: Convert to fraction form
    270,007.53/405,265.53 = 136,983.26/x
  3. Step 3: Cross multiply
    270,007.53x = 405,265.53 × 136,983.26
  4. Step 4: Simplify right side
    270,007.53x = 55,514,591,438.70
  5. Step 5: Solve for x
    x = 55,514,591,438.70/270,007.53
  6. Step 6: Final answer
    x = 205,603.86

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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.