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Finding the Fourth Proportional to 209,668.22, 289,339.28 and 119,023.39

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Solution

The fourth proportional to 209,668.22, 289,339.28 and 119,023.39 is: 164,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,668.22 : 289,339.28 = 119,023.39 : x
  2. Step 2: Convert to fraction form
    209,668.22/289,339.28 = 119,023.39/x
  3. Step 3: Cross multiply
    209,668.22x = 289,339.28 × 119,023.39
  4. Step 4: Simplify right side
    209,668.22x = 34,438,141,965.76
  5. Step 5: Solve for x
    x = 34,438,141,965.76/209,668.22
  6. Step 6: Final answer
    x = 164,250.65

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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.