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Finding the Fourth Proportional to 203,699.75, 305,557.91 and 97,028.87

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Solution

The fourth proportional to 203,699.75, 305,557.91 and 97,028.87 is: 145,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,699.75 : 305,557.91 = 97,028.87 : x
  2. Step 2: Convert to fraction form
    203,699.75/305,557.91 = 97,028.87/x
  3. Step 3: Cross multiply
    203,699.75x = 305,557.91 × 97,028.87
  4. Step 4: Simplify right side
    203,699.75x = 29,647,938,241.72
  5. Step 5: Solve for x
    x = 29,647,938,241.72/203,699.75
  6. Step 6: Final answer
    x = 145,547.25

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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.