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Finding the Fourth Proportional to 288,143.80, 397,634.86 and 159,083.32

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Solution

The fourth proportional to 288,143.80, 397,634.86 and 159,083.32 is: 219,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,143.80 : 397,634.86 = 159,083.32 : x
  2. Step 2: Convert to fraction form
    288,143.80/397,634.86 = 159,083.32/x
  3. Step 3: Cross multiply
    288,143.80x = 397,634.86 × 159,083.32
  4. Step 4: Simplify right side
    288,143.80x = 63,257,073,676.54
  5. Step 5: Solve for x
    x = 63,257,073,676.54/288,143.80
  6. Step 6: Final answer
    x = 219,533.00

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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.