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Finding the Fourth Proportional to 175,438.78, 263,114.30 and 68,844.40

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Solution

The fourth proportional to 175,438.78, 263,114.30 and 68,844.40 is: 103,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,438.78 : 263,114.30 = 68,844.40 : x
  2. Step 2: Convert to fraction form
    175,438.78/263,114.30 = 68,844.40/x
  3. Step 3: Cross multiply
    175,438.78x = 263,114.30 × 68,844.40
  4. Step 4: Simplify right side
    175,438.78x = 18,113,946,114.92
  5. Step 5: Solve for x
    x = 18,113,946,114.92/175,438.78
  6. Step 6: Final answer
    x = 103,249.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.