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Finding the Fourth Proportional to 268,100.59, 402,150.54 and 68,420.98

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Solution

The fourth proportional to 268,100.59, 402,150.54 and 68,420.98 is: 102,631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,100.59 : 402,150.54 = 68,420.98 : x
  2. Step 2: Convert to fraction form
    268,100.59/402,150.54 = 68,420.98/x
  3. Step 3: Cross multiply
    268,100.59x = 402,150.54 × 68,420.98
  4. Step 4: Simplify right side
    268,100.59x = 27,515,534,054.33
  5. Step 5: Solve for x
    x = 27,515,534,054.33/268,100.59
  6. Step 6: Final answer
    x = 102,631.38

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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.