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Finding the Fourth Proportional to 345,682.58, 477,043.85 and 192,730.31

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Solution

The fourth proportional to 345,682.58, 477,043.85 and 192,730.31 is: 265,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,682.58 : 477,043.85 = 192,730.31 : x
  2. Step 2: Convert to fraction form
    345,682.58/477,043.85 = 192,730.31/x
  3. Step 3: Cross multiply
    345,682.58x = 477,043.85 × 192,730.31
  4. Step 4: Simplify right side
    345,682.58x = 91,940,805,745.22
  5. Step 5: Solve for x
    x = 91,940,805,745.22/345,682.58
  6. Step 6: Final answer
    x = 265,968.88

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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.