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Finding the Fourth Proportional to 217,751.19, 326,647.44 and 84,641.73

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Solution

The fourth proportional to 217,751.19, 326,647.44 and 84,641.73 is: 126,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,751.19 : 326,647.44 = 84,641.73 : x
  2. Step 2: Convert to fraction form
    217,751.19/326,647.44 = 84,641.73/x
  3. Step 3: Cross multiply
    217,751.19x = 326,647.44 × 84,641.73
  4. Step 4: Simplify right side
    217,751.19x = 27,648,004,421.67
  5. Step 5: Solve for x
    x = 27,648,004,421.67/217,751.19
  6. Step 6: Final answer
    x = 126,970.62

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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.