Home / 414,531.32-621,704.10-161,817.80

Finding the Fourth Proportional to 414,531.32, 621,704.10 and 161,817.80

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Solution

The fourth proportional to 414,531.32, 621,704.10 and 161,817.80 is: 242,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,531.32 : 621,704.10 = 161,817.80 : x
  2. Step 2: Convert to fraction form
    414,531.32/621,704.10 = 161,817.80/x
  3. Step 3: Cross multiply
    414,531.32x = 621,704.10 × 161,817.80
  4. Step 4: Simplify right side
    414,531.32x = 100,602,789,712.98
  5. Step 5: Solve for x
    x = 100,602,789,712.98/414,531.32
  6. Step 6: Final answer
    x = 242,690.44

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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.