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Finding the Fourth Proportional to 218,846.87, 328,270.31 and 168,999.67

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Solution

The fourth proportional to 218,846.87, 328,270.31 and 168,999.67 is: 253,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,846.87 : 328,270.31 = 168,999.67 : x
  2. Step 2: Convert to fraction form
    218,846.87/328,270.31 = 168,999.67/x
  3. Step 3: Cross multiply
    218,846.87x = 328,270.31 × 168,999.67
  4. Step 4: Simplify right side
    218,846.87x = 55,477,573,662.62
  5. Step 5: Solve for x
    x = 55,477,573,662.62/218,846.87
  6. Step 6: Final answer
    x = 253,499.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.