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Finding the Fourth Proportional to 268,110.63, 402,165.59 and 68,431.01

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Solution

The fourth proportional to 268,110.63, 402,165.59 and 68,431.01 is: 102,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,110.63 : 402,165.59 = 68,431.01 : x
  2. Step 2: Convert to fraction form
    268,110.63/402,165.59 = 68,431.01/x
  3. Step 3: Cross multiply
    268,110.63x = 402,165.59 × 68,431.01
  4. Step 4: Simplify right side
    268,110.63x = 27,520,595,157.96
  5. Step 5: Solve for x
    x = 27,520,595,157.96/268,110.63
  6. Step 6: Final answer
    x = 102,646.42

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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.