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Finding the Fourth Proportional to 288,852.38, 398,608.82 and 159,787.49

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Solution

The fourth proportional to 288,852.38, 398,608.82 and 159,787.49 is: 220,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,852.38 : 398,608.82 = 159,787.49 : x
  2. Step 2: Convert to fraction form
    288,852.38/398,608.82 = 159,787.49/x
  3. Step 3: Cross multiply
    288,852.38x = 398,608.82 × 159,787.49
  4. Step 4: Simplify right side
    288,852.38x = 63,692,702,839.66
  5. Step 5: Solve for x
    x = 63,692,702,839.66/288,852.38
  6. Step 6: Final answer
    x = 220,502.61

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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.