Home / 217,735.73-300,465.28-120,945.72

Finding the Fourth Proportional to 217,735.73, 300,465.28 and 120,945.72

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Solution

The fourth proportional to 217,735.73, 300,465.28 and 120,945.72 is: 166,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,735.73 : 300,465.28 = 120,945.72 : x
  2. Step 2: Convert to fraction form
    217,735.73/300,465.28 = 120,945.72/x
  3. Step 3: Cross multiply
    217,735.73x = 300,465.28 × 120,945.72
  4. Step 4: Simplify right side
    217,735.73x = 36,339,989,322.24
  5. Step 5: Solve for x
    x = 36,339,989,322.24/217,735.73
  6. Step 6: Final answer
    x = 166,899.53

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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.