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Finding the Fourth Proportional to 287,537.22, 396,804.06 and 158,480.28

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Solution

The fourth proportional to 287,537.22, 396,804.06 and 158,480.28 is: 218,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,537.22 : 396,804.06 = 158,480.28 : x
  2. Step 2: Convert to fraction form
    287,537.22/396,804.06 = 158,480.28/x
  3. Step 3: Cross multiply
    287,537.22x = 396,804.06 × 158,480.28
  4. Step 4: Simplify right side
    287,537.22x = 62,885,618,533.94
  5. Step 5: Solve for x
    x = 62,885,618,533.94/287,537.22
  6. Step 6: Final answer
    x = 218,704.27

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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.