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Finding the Fourth Proportional to 209,334.63, 288,873.03 and 118,696.74

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Solution

The fourth proportional to 209,334.63, 288,873.03 and 118,696.74 is: 163,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,334.63 : 288,873.03 = 118,696.74 : x
  2. Step 2: Convert to fraction form
    209,334.63/288,873.03 = 118,696.74/x
  3. Step 3: Cross multiply
    209,334.63x = 288,873.03 × 118,696.74
  4. Step 4: Simplify right side
    209,334.63x = 34,288,286,934.92
  5. Step 5: Solve for x
    x = 34,288,286,934.92/209,334.63
  6. Step 6: Final answer
    x = 163,796.53

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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.