Home / 217,609.16-300,322.22-122,116.23

Finding the Fourth Proportional to 217,609.16, 300,322.22 and 122,116.23

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Solution

The fourth proportional to 217,609.16, 300,322.22 and 122,116.23 is: 168,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,609.16 : 300,322.22 = 122,116.23 : x
  2. Step 2: Convert to fraction form
    217,609.16/300,322.22 = 122,116.23/x
  3. Step 3: Cross multiply
    217,609.16x = 300,322.22 × 122,116.23
  4. Step 4: Simplify right side
    217,609.16x = 36,674,216,681.05
  5. Step 5: Solve for x
    x = 36,674,216,681.05/217,609.16
  6. Step 6: Final answer
    x = 168,532.51

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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.