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Finding the Fourth Proportional to 223,375.84, 308,330.52 and 143,019.82

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Solution

The fourth proportional to 223,375.84, 308,330.52 and 143,019.82 is: 197,413.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,375.84 : 308,330.52 = 143,019.82 : x
  2. Step 2: Convert to fraction form
    223,375.84/308,330.52 = 143,019.82/x
  3. Step 3: Cross multiply
    223,375.84x = 308,330.52 × 143,019.82
  4. Step 4: Simplify right side
    223,375.84x = 44,097,375,470.91
  5. Step 5: Solve for x
    x = 44,097,375,470.91/223,375.84
  6. Step 6: Final answer
    x = 197,413.36

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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.