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Finding the Fourth Proportional to 201,256.62, 277,737.38 and 115,215.26

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Solution

The fourth proportional to 201,256.62, 277,737.38 and 115,215.26 is: 158,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,256.62 : 277,737.38 = 115,215.26 : x
  2. Step 2: Convert to fraction form
    201,256.62/277,737.38 = 115,215.26/x
  3. Step 3: Cross multiply
    201,256.62x = 277,737.38 × 115,215.26
  4. Step 4: Simplify right side
    201,256.62x = 31,999,584,802.03
  5. Step 5: Solve for x
    x = 31,999,584,802.03/201,256.62
  6. Step 6: Final answer
    x = 158,998.91

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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.