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Finding the Fourth Proportional to 190,539.78, 262,948.50 and 104,493.30

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Solution

The fourth proportional to 190,539.78, 262,948.50 and 104,493.30 is: 144,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,539.78 : 262,948.50 = 104,493.30 : x
  2. Step 2: Convert to fraction form
    190,539.78/262,948.50 = 104,493.30/x
  3. Step 3: Cross multiply
    190,539.78x = 262,948.50 × 104,493.30
  4. Step 4: Simplify right side
    190,539.78x = 27,476,356,495.05
  5. Step 5: Solve for x
    x = 27,476,356,495.05/190,539.78
  6. Step 6: Final answer
    x = 144,202.73

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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.