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Finding the Fourth Proportional to 297,866.34, 445,729.23 and 218,784.42

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Solution

The fourth proportional to 297,866.34, 445,729.23 and 218,784.42 is: 327,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,866.34 : 445,729.23 = 218,784.42 : x
  2. Step 2: Convert to fraction form
    297,866.34/445,729.23 = 218,784.42/x
  3. Step 3: Cross multiply
    297,866.34x = 445,729.23 × 218,784.42
  4. Step 4: Simplify right side
    297,866.34x = 97,518,611,062.60
  5. Step 5: Solve for x
    x = 97,518,611,062.60/297,866.34
  6. Step 6: Final answer
    x = 327,390.50

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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.