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Finding the Fourth Proportional to 326,838.78, 490,029.48 and 166,964.22

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Solution

The fourth proportional to 326,838.78, 490,029.48 and 166,964.22 is: 250,329.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,838.78 : 490,029.48 = 166,964.22 : x
  2. Step 2: Convert to fraction form
    326,838.78/490,029.48 = 166,964.22/x
  3. Step 3: Cross multiply
    326,838.78x = 490,029.48 × 166,964.22
  4. Step 4: Simplify right side
    326,838.78x = 81,817,389,905.21
  5. Step 5: Solve for x
    x = 81,817,389,905.21/326,838.78
  6. Step 6: Final answer
    x = 250,329.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.