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Finding the Fourth Proportional to 268,178.90, 402,272.01 and 68,500.94

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Solution

The fourth proportional to 268,178.90, 402,272.01 and 68,500.94 is: 102,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,178.90 : 402,272.01 = 68,500.94 : x
  2. Step 2: Convert to fraction form
    268,178.90/402,272.01 = 68,500.94/x
  3. Step 3: Cross multiply
    268,178.90x = 402,272.01 × 68,500.94
  4. Step 4: Simplify right side
    268,178.90x = 27,556,008,809.33
  5. Step 5: Solve for x
    x = 27,556,008,809.33/268,178.90
  6. Step 6: Final answer
    x = 102,752.34

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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.