Home / 209,409.34-289,091.91-161,555.26

Finding the Fourth Proportional to 209,409.34, 289,091.91 and 161,555.26

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Solution

The fourth proportional to 209,409.34, 289,091.91 and 161,555.26 is: 223,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,409.34 : 289,091.91 = 161,555.26 : x
  2. Step 2: Convert to fraction form
    209,409.34/289,091.91 = 161,555.26/x
  3. Step 3: Cross multiply
    209,409.34x = 289,091.91 × 161,555.26
  4. Step 4: Simplify right side
    209,409.34x = 46,704,318,683.95
  5. Step 5: Solve for x
    x = 46,704,318,683.95/209,409.34
  6. Step 6: Final answer
    x = 223,028.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.