Home / 217,819.01-300,557.70-122,307.23

Finding the Fourth Proportional to 217,819.01, 300,557.70 and 122,307.23

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Solution

The fourth proportional to 217,819.01, 300,557.70 and 122,307.23 is: 168,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,819.01 : 300,557.70 = 122,307.23 : x
  2. Step 2: Convert to fraction form
    217,819.01/300,557.70 = 122,307.23/x
  3. Step 3: Cross multiply
    217,819.01x = 300,557.70 × 122,307.23
  4. Step 4: Simplify right side
    217,819.01x = 36,760,378,239.38
  5. Step 5: Solve for x
    x = 36,760,378,239.38/217,819.01
  6. Step 6: Final answer
    x = 168,765.71

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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.