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Finding the Fourth Proportional to 290,860.97, 401,253.41 and 170,007.35

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Solution

The fourth proportional to 290,860.97, 401,253.41 and 170,007.35 is: 234,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,860.97 : 401,253.41 = 170,007.35 : x
  2. Step 2: Convert to fraction form
    290,860.97/401,253.41 = 170,007.35/x
  3. Step 3: Cross multiply
    290,860.97x = 401,253.41 × 170,007.35
  4. Step 4: Simplify right side
    290,860.97x = 68,216,028,912.56
  5. Step 5: Solve for x
    x = 68,216,028,912.56/290,860.97
  6. Step 6: Final answer
    x = 234,531.39

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1.5x scale

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.