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Finding the Fourth Proportional to 268,340.88, 402,525.12 and 68,663.04

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Solution

The fourth proportional to 268,340.88, 402,525.12 and 68,663.04 is: 102,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,340.88 : 402,525.12 = 68,663.04 : x
  2. Step 2: Convert to fraction form
    268,340.88/402,525.12 = 68,663.04/x
  3. Step 3: Cross multiply
    268,340.88x = 402,525.12 × 68,663.04
  4. Step 4: Simplify right side
    268,340.88x = 27,638,598,415.56
  5. Step 5: Solve for x
    x = 27,638,598,415.56/268,340.88
  6. Step 6: Final answer
    x = 102,998.09

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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.