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Finding the Fourth Proportional to 452,604.90, 678,990.36 and 149,016.36

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Solution

The fourth proportional to 452,604.90, 678,990.36 and 149,016.36 is: 223,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,604.90 : 678,990.36 = 149,016.36 : x
  2. Step 2: Convert to fraction form
    452,604.90/678,990.36 = 149,016.36/x
  3. Step 3: Cross multiply
    452,604.90x = 678,990.36 × 149,016.36
  4. Step 4: Simplify right side
    452,604.90x = 101,180,671,922.29
  5. Step 5: Solve for x
    x = 101,180,671,922.29/452,604.90
  6. Step 6: Final answer
    x = 223,551.87

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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.