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Finding the Fourth Proportional to 268,171.24, 402,256.54 and 68,491.80

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Solution

The fourth proportional to 268,171.24, 402,256.54 and 68,491.80 is: 102,737.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,171.24 : 402,256.54 = 68,491.80 : x
  2. Step 2: Convert to fraction form
    268,171.24/402,256.54 = 68,491.80/x
  3. Step 3: Cross multiply
    268,171.24x = 402,256.54 × 68,491.80
  4. Step 4: Simplify right side
    268,171.24x = 27,551,274,486.37
  5. Step 5: Solve for x
    x = 27,551,274,486.37/268,171.24
  6. Step 6: Final answer
    x = 102,737.62

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1.5x scale

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.