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Finding the Fourth Proportional to 453,991.59, 680,992.83 and 154,478.34

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Solution

The fourth proportional to 453,991.59, 680,992.83 and 154,478.34 is: 231,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,991.59 : 680,992.83 = 154,478.34 : x
  2. Step 2: Convert to fraction form
    453,991.59/680,992.83 = 154,478.34/x
  3. Step 3: Cross multiply
    453,991.59x = 680,992.83 × 154,478.34
  4. Step 4: Simplify right side
    453,991.59x = 105,198,641,930.30
  5. Step 5: Solve for x
    x = 105,198,641,930.30/453,991.59
  6. Step 6: Final answer
    x = 231,719.36

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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.