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Finding the Fourth Proportional to 287,360.67, 396,557.55 and 166,571.94

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Solution

The fourth proportional to 287,360.67, 396,557.55 and 166,571.94 is: 229,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,360.67 : 396,557.55 = 166,571.94 : x
  2. Step 2: Convert to fraction form
    287,360.67/396,557.55 = 166,571.94/x
  3. Step 3: Cross multiply
    287,360.67x = 396,557.55 × 166,571.94
  4. Step 4: Simplify right side
    287,360.67x = 66,055,360,425.15
  5. Step 5: Solve for x
    x = 66,055,360,425.15/287,360.67
  6. Step 6: Final answer
    x = 229,869.18

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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.