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Finding the Fourth Proportional to 290,804.04, 401,330.72 and 177,648.12

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Solution

The fourth proportional to 290,804.04, 401,330.72 and 177,648.12 is: 245,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,804.04 : 401,330.72 = 177,648.12 : x
  2. Step 2: Convert to fraction form
    290,804.04/401,330.72 = 177,648.12/x
  3. Step 3: Cross multiply
    290,804.04x = 401,330.72 × 177,648.12
  4. Step 4: Simplify right side
    290,804.04x = 71,295,647,906.25
  5. Step 5: Solve for x
    x = 71,295,647,906.25/290,804.04
  6. Step 6: Final answer
    x = 245,167.32

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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.