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Finding the Fourth Proportional to 328,201.60, 492,258.65 and 91,524.46

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Solution

The fourth proportional to 328,201.60, 492,258.65 and 91,524.46 is: 137,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,201.60 : 492,258.65 = 91,524.46 : x
  2. Step 2: Convert to fraction form
    328,201.60/492,258.65 = 91,524.46/x
  3. Step 3: Cross multiply
    328,201.60x = 492,258.65 × 91,524.46
  4. Step 4: Simplify right side
    328,201.60x = 45,053,707,121.58
  5. Step 5: Solve for x
    x = 45,053,707,121.58/328,201.60
  6. Step 6: Final answer
    x = 137,274.49

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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.