Home / 209,576.35-288,664.45-161,085.57

Finding the Fourth Proportional to 209,576.35, 288,664.45 and 161,085.57

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Solution

The fourth proportional to 209,576.35, 288,664.45 and 161,085.57 is: 221,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,576.35 : 288,664.45 = 161,085.57 : x
  2. Step 2: Convert to fraction form
    209,576.35/288,664.45 = 161,085.57/x
  3. Step 3: Cross multiply
    209,576.35x = 288,664.45 × 161,085.57
  4. Step 4: Simplify right side
    209,576.35x = 46,499,677,466.99
  5. Step 5: Solve for x
    x = 46,499,677,466.99/209,576.35
  6. Step 6: Final answer
    x = 221,874.64

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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.