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Finding the Fourth Proportional to 216,515.87, 298,790.06 and 119,722.22

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Solution

The fourth proportional to 216,515.87, 298,790.06 and 119,722.22 is: 165,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,515.87 : 298,790.06 = 119,722.22 : x
  2. Step 2: Convert to fraction form
    216,515.87/298,790.06 = 119,722.22/x
  3. Step 3: Cross multiply
    216,515.87x = 298,790.06 × 119,722.22
  4. Step 4: Simplify right side
    216,515.87x = 35,771,809,297.13
  5. Step 5: Solve for x
    x = 35,771,809,297.13/216,515.87
  6. Step 6: Final answer
    x = 165,215.65

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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.