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Finding the Fourth Proportional to 399,914.44, 551,888.49 and 238,783.57

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Solution

The fourth proportional to 399,914.44, 551,888.49 and 238,783.57 is: 329,525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,914.44 : 551,888.49 = 238,783.57 : x
  2. Step 2: Convert to fraction form
    399,914.44/551,888.49 = 238,783.57/x
  3. Step 3: Cross multiply
    399,914.44x = 551,888.49 × 238,783.57
  4. Step 4: Simplify right side
    399,914.44x = 131,781,901,124.67
  5. Step 5: Solve for x
    x = 131,781,901,124.67/399,914.44
  6. Step 6: Final answer
    x = 329,525.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.