Home / 287,564.16-396,840.11-166,777.05

Finding the Fourth Proportional to 287,564.16, 396,840.11 and 166,777.05

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Solution

The fourth proportional to 287,564.16, 396,840.11 and 166,777.05 is: 230,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,564.16 : 396,840.11 = 166,777.05 : x
  2. Step 2: Convert to fraction form
    287,564.16/396,840.11 = 166,777.05/x
  3. Step 3: Cross multiply
    287,564.16x = 396,840.11 × 166,777.05
  4. Step 4: Simplify right side
    287,564.16x = 66,183,822,033.59
  5. Step 5: Solve for x
    x = 66,183,822,033.59/287,564.16
  6. Step 6: Final answer
    x = 230,153.24

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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.