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Finding the Fourth Proportional to 289,600.62, 399,659.67 and 162,271.50

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Solution

The fourth proportional to 289,600.62, 399,659.67 and 162,271.50 is: 223,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,600.62 : 399,659.67 = 162,271.50 : x
  2. Step 2: Convert to fraction form
    289,600.62/399,659.67 = 162,271.50/x
  3. Step 3: Cross multiply
    289,600.62x = 399,659.67 × 162,271.50
  4. Step 4: Simplify right side
    289,600.62x = 64,853,374,140.41
  5. Step 5: Solve for x
    x = 64,853,374,140.41/289,600.62
  6. Step 6: Final answer
    x = 223,940.73

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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.