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Finding the Fourth Proportional to 288,159.77, 397,623.79 and 160,840.73

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Solution

The fourth proportional to 288,159.77, 397,623.79 and 160,840.73 is: 221,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,159.77 : 397,623.79 = 160,840.73 : x
  2. Step 2: Convert to fraction form
    288,159.77/397,623.79 = 160,840.73/x
  3. Step 3: Cross multiply
    288,159.77x = 397,623.79 × 160,840.73
  4. Step 4: Simplify right side
    288,159.77x = 63,954,100,648.97
  5. Step 5: Solve for x
    x = 63,954,100,648.97/288,159.77
  6. Step 6: Final answer
    x = 221,939.73

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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.