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Finding the Fourth Proportional to 290,603.52, 401,022.72 and 177,615.36

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Solution

The fourth proportional to 290,603.52, 401,022.72 and 177,615.36 is: 245,103.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,603.52 : 401,022.72 = 177,615.36 : x
  2. Step 2: Convert to fraction form
    290,603.52/401,022.72 = 177,615.36/x
  3. Step 3: Cross multiply
    290,603.52x = 401,022.72 × 177,615.36
  4. Step 4: Simplify right side
    290,603.52x = 71,227,794,780.98
  5. Step 5: Solve for x
    x = 71,227,794,780.98/290,603.52
  6. Step 6: Final answer
    x = 245,103.00

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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.