Home / 287,520.34-396,778.41-166,731.82

Finding the Fourth Proportional to 287,520.34, 396,778.41 and 166,731.82

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Solution

The fourth proportional to 287,520.34, 396,778.41 and 166,731.82 is: 230,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,520.34 : 396,778.41 = 166,731.82 : x
  2. Step 2: Convert to fraction form
    287,520.34/396,778.41 = 166,731.82/x
  3. Step 3: Cross multiply
    287,520.34x = 396,778.41 × 166,731.82
  4. Step 4: Simplify right side
    287,520.34x = 66,155,586,436.01
  5. Step 5: Solve for x
    x = 66,155,586,436.01/287,520.34
  6. Step 6: Final answer
    x = 230,090.11

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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.