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Finding the Fourth Proportional to 209,600.67, 289,232.31 and 118,956.63

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Solution

The fourth proportional to 209,600.67, 289,232.31 and 118,956.63 is: 164,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,600.67 : 289,232.31 = 118,956.63 : x
  2. Step 2: Convert to fraction form
    209,600.67/289,232.31 = 118,956.63/x
  3. Step 3: Cross multiply
    209,600.67x = 289,232.31 × 118,956.63
  4. Step 4: Simplify right side
    209,600.67x = 34,406,100,884.72
  5. Step 5: Solve for x
    x = 34,406,100,884.72/209,600.67
  6. Step 6: Final answer
    x = 164,150.72

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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.