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Finding the Fourth Proportional to 287,562.28, 396,837.51 and 166,775.18

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Solution

The fourth proportional to 287,562.28, 396,837.51 and 166,775.18 is: 230,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,562.28 : 396,837.51 = 166,775.18 : x
  2. Step 2: Convert to fraction form
    287,562.28/396,837.51 = 166,775.18/x
  3. Step 3: Cross multiply
    287,562.28x = 396,837.51 × 166,775.18
  4. Step 4: Simplify right side
    287,562.28x = 66,182,646,702.64
  5. Step 5: Solve for x
    x = 66,182,646,702.64/287,562.28
  6. Step 6: Final answer
    x = 230,150.66

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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.