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Finding the Fourth Proportional to 351,347.73, 484,860.02 and 190,202.78

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Solution

The fourth proportional to 351,347.73, 484,860.02 and 190,202.78 is: 262,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,347.73 : 484,860.02 = 190,202.78 : x
  2. Step 2: Convert to fraction form
    351,347.73/484,860.02 = 190,202.78/x
  3. Step 3: Cross multiply
    351,347.73x = 484,860.02 × 190,202.78
  4. Step 4: Simplify right side
    351,347.73x = 92,221,721,290.56
  5. Step 5: Solve for x
    x = 92,221,721,290.56/351,347.73
  6. Step 6: Final answer
    x = 262,479.91

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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.