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Finding the Fourth Proportional to 209,886.60, 289,650.27 and 119,240.92

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Solution

The fourth proportional to 209,886.60, 289,650.27 and 119,240.92 is: 164,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,886.60 : 289,650.27 = 119,240.92 : x
  2. Step 2: Convert to fraction form
    209,886.60/289,650.27 = 119,240.92/x
  3. Step 3: Cross multiply
    209,886.60x = 289,650.27 × 119,240.92
  4. Step 4: Simplify right side
    209,886.60x = 34,538,164,673.05
  5. Step 5: Solve for x
    x = 34,538,164,673.05/209,886.60
  6. Step 6: Final answer
    x = 164,556.31

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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.