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Finding the Fourth Proportional to 205,495.20, 308,238.48 and 94,687.20

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Solution

The fourth proportional to 205,495.20, 308,238.48 and 94,687.20 is: 142,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,495.20 : 308,238.48 = 94,687.20 : x
  2. Step 2: Convert to fraction form
    205,495.20/308,238.48 = 94,687.20/x
  3. Step 3: Cross multiply
    205,495.20x = 308,238.48 × 94,687.20
  4. Step 4: Simplify right side
    205,495.20x = 29,186,238,603.46
  5. Step 5: Solve for x
    x = 29,186,238,603.46/205,495.20
  6. Step 6: Final answer
    x = 142,028.81

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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.