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Finding the Fourth Proportional to 197,358.09, 295,992.49 and 90,639.45

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Solution

The fourth proportional to 197,358.09, 295,992.49 and 90,639.45 is: 135,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,358.09 : 295,992.49 = 90,639.45 : x
  2. Step 2: Convert to fraction form
    197,358.09/295,992.49 = 90,639.45/x
  3. Step 3: Cross multiply
    197,358.09x = 295,992.49 × 90,639.45
  4. Step 4: Simplify right side
    197,358.09x = 26,828,596,497.73
  5. Step 5: Solve for x
    x = 26,828,596,497.73/197,358.09
  6. Step 6: Final answer
    x = 135,938.67

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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.