Home / 419,857.69-629,664.52-163,633.23

Finding the Fourth Proportional to 419,857.69, 629,664.52 and 163,633.23

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Solution

The fourth proportional to 419,857.69, 629,664.52 and 163,633.23 is: 245,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,857.69 : 629,664.52 = 163,633.23 : x
  2. Step 2: Convert to fraction form
    419,857.69/629,664.52 = 163,633.23/x
  3. Step 3: Cross multiply
    419,857.69x = 629,664.52 × 163,633.23
  4. Step 4: Simplify right side
    419,857.69x = 103,034,041,352.88
  5. Step 5: Solve for x
    x = 103,034,041,352.88/419,857.69
  6. Step 6: Final answer
    x = 245,402.30

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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.