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Finding the Fourth Proportional to 285,963.04, 394,676.30 and 158,679.64

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Solution

The fourth proportional to 285,963.04, 394,676.30 and 158,679.64 is: 219,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,963.04 : 394,676.30 = 158,679.64 : x
  2. Step 2: Convert to fraction form
    285,963.04/394,676.30 = 158,679.64/x
  3. Step 3: Cross multiply
    285,963.04x = 394,676.30 × 158,679.64
  4. Step 4: Simplify right side
    285,963.04x = 62,627,093,200.53
  5. Step 5: Solve for x
    x = 62,627,093,200.53/285,963.04
  6. Step 6: Final answer
    x = 219,004.15

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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.