Home / 217,609.66-300,322.90-122,116.73

Finding the Fourth Proportional to 217,609.66, 300,322.90 and 122,116.73

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Solution

The fourth proportional to 217,609.66, 300,322.90 and 122,116.73 is: 168,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,609.66 : 300,322.90 = 122,116.73 : x
  2. Step 2: Convert to fraction form
    217,609.66/300,322.90 = 122,116.73/x
  3. Step 3: Cross multiply
    217,609.66x = 300,322.90 × 122,116.73
  4. Step 4: Simplify right side
    217,609.66x = 36,674,450,492.12
  5. Step 5: Solve for x
    x = 36,674,450,492.12/217,609.66
  6. Step 6: Final answer
    x = 168,533.19

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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.