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Finding the Fourth Proportional to 203,173.51, 304,788.81 and 84,817.93

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Solution

The fourth proportional to 203,173.51, 304,788.81 and 84,817.93 is: 127,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,173.51 : 304,788.81 = 84,817.93 : x
  2. Step 2: Convert to fraction form
    203,173.51/304,788.81 = 84,817.93/x
  3. Step 3: Cross multiply
    203,173.51x = 304,788.81 × 84,817.93
  4. Step 4: Simplify right side
    203,173.51x = 25,851,555,951.36
  5. Step 5: Solve for x
    x = 25,851,555,951.36/203,173.51
  6. Step 6: Final answer
    x = 127,238.81

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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.