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Finding the Fourth Proportional to 268,537.72, 370,553.34 and 155,339.32

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Solution

The fourth proportional to 268,537.72, 370,553.34 and 155,339.32 is: 214,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,537.72 : 370,553.34 = 155,339.32 : x
  2. Step 2: Convert to fraction form
    268,537.72/370,553.34 = 155,339.32/x
  3. Step 3: Cross multiply
    268,537.72x = 370,553.34 × 155,339.32
  4. Step 4: Simplify right side
    268,537.72x = 57,561,503,859.33
  5. Step 5: Solve for x
    x = 57,561,503,859.33/268,537.72
  6. Step 6: Final answer
    x = 214,351.65

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