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Finding the Fourth Proportional to 368,186.66, 551,394.26 and 209,935.34

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Solution

The fourth proportional to 368,186.66, 551,394.26 and 209,935.34 is: 314,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,186.66 : 551,394.26 = 209,935.34 : x
  2. Step 2: Convert to fraction form
    368,186.66/551,394.26 = 209,935.34/x
  3. Step 3: Cross multiply
    368,186.66x = 551,394.26 × 209,935.34
  4. Step 4: Simplify right side
    368,186.66x = 115,757,141,447.15
  5. Step 5: Solve for x
    x = 115,757,141,447.15/368,186.66
  6. Step 6: Final answer
    x = 314,397.98

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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.