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Finding the Fourth Proportional to 218,479.40, 327,716.29 and 119,271.62

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Solution

The fourth proportional to 218,479.40, 327,716.29 and 119,271.62 is: 178,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,479.40 : 327,716.29 = 119,271.62 : x
  2. Step 2: Convert to fraction form
    218,479.40/327,716.29 = 119,271.62/x
  3. Step 3: Cross multiply
    218,479.40x = 327,716.29 × 119,271.62
  4. Step 4: Simplify right side
    218,479.40x = 39,087,252,808.69
  5. Step 5: Solve for x
    x = 39,087,252,808.69/218,479.40
  6. Step 6: Final answer
    x = 178,905.90

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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.