Home / 287,647.20-396,951.84-166,858.56

Finding the Fourth Proportional to 287,647.20, 396,951.84 and 166,858.56

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Solution

The fourth proportional to 287,647.20, 396,951.84 and 166,858.56 is: 230,264.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,647.20 : 396,951.84 = 166,858.56 : x
  2. Step 2: Convert to fraction form
    287,647.20/396,951.84 = 166,858.56/x
  3. Step 3: Cross multiply
    287,647.20x = 396,951.84 × 166,858.56
  4. Step 4: Simplify right side
    287,647.20x = 66,234,812,411.75
  5. Step 5: Solve for x
    x = 66,234,812,411.75/287,647.20
  6. Step 6: Final answer
    x = 230,264.06

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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.