Home / 217,945.95-300,765.68-122,452.59

Finding the Fourth Proportional to 217,945.95, 300,765.68 and 122,452.59

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Solution

The fourth proportional to 217,945.95, 300,765.68 and 122,452.59 is: 168,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,945.95 : 300,765.68 = 122,452.59 : x
  2. Step 2: Convert to fraction form
    217,945.95/300,765.68 = 122,452.59/x
  3. Step 3: Cross multiply
    217,945.95x = 300,765.68 × 122,452.59
  4. Step 4: Simplify right side
    217,945.95x = 36,829,535,886.85
  5. Step 5: Solve for x
    x = 36,829,535,886.85/217,945.95
  6. Step 6: Final answer
    x = 168,984.72

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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.