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Finding the Fourth Proportional to 194,510.79, 268,414.50 and 108,478.59

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Solution

The fourth proportional to 194,510.79, 268,414.50 and 108,478.59 is: 149,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,510.79 : 268,414.50 = 108,478.59 : x
  2. Step 2: Convert to fraction form
    194,510.79/268,414.50 = 108,478.59/x
  3. Step 3: Cross multiply
    194,510.79x = 268,414.50 × 108,478.59
  4. Step 4: Simplify right side
    194,510.79x = 29,117,226,495.56
  5. Step 5: Solve for x
    x = 29,117,226,495.56/194,510.79
  6. Step 6: Final answer
    x = 149,694.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.