Home / 287,812.26-397,183.50-158,755.73

Finding the Fourth Proportional to 287,812.26, 397,183.50 and 158,755.73

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Solution

The fourth proportional to 287,812.26, 397,183.50 and 158,755.73 is: 219,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,812.26 : 397,183.50 = 158,755.73 : x
  2. Step 2: Convert to fraction form
    287,812.26/397,183.50 = 158,755.73/x
  3. Step 3: Cross multiply
    287,812.26x = 397,183.50 × 158,755.73
  4. Step 4: Simplify right side
    287,812.26x = 63,055,154,500.54
  5. Step 5: Solve for x
    x = 63,055,154,500.54/287,812.26
  6. Step 6: Final answer
    x = 219,084.32

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1.5x scale

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.