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Finding the Fourth Proportional to 326,110.60, 489,165.90 and 166,678.30

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Solution

The fourth proportional to 326,110.60, 489,165.90 and 166,678.30 is: 250,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,110.60 : 489,165.90 = 166,678.30 : x
  2. Step 2: Convert to fraction form
    326,110.60/489,165.90 = 166,678.30/x
  3. Step 3: Cross multiply
    326,110.60x = 489,165.90 × 166,678.30
  4. Step 4: Simplify right side
    326,110.60x = 81,533,340,629.97
  5. Step 5: Solve for x
    x = 81,533,340,629.97/326,110.60
  6. Step 6: Final answer
    x = 250,017.45

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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.