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Finding the Fourth Proportional to 453,994.98, 680,990.64 and 138,450.97

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Solution

The fourth proportional to 453,994.98, 680,990.64 and 138,450.97 is: 207,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,994.98 : 680,990.64 = 138,450.97 : x
  2. Step 2: Convert to fraction form
    453,994.98/680,990.64 = 138,450.97/x
  3. Step 3: Cross multiply
    453,994.98x = 680,990.64 × 138,450.97
  4. Step 4: Simplify right side
    453,994.98x = 94,283,814,668.92
  5. Step 5: Solve for x
    x = 94,283,814,668.92/453,994.98
  6. Step 6: Final answer
    x = 207,675.90

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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.