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Finding the Fourth Proportional to 392,297.67, 587,885.06 and 223,469.57

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Solution

The fourth proportional to 392,297.67, 587,885.06 and 223,469.57 is: 334,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,297.67 : 587,885.06 = 223,469.57 : x
  2. Step 2: Convert to fraction form
    392,297.67/587,885.06 = 223,469.57/x
  3. Step 3: Cross multiply
    392,297.67x = 587,885.06 × 223,469.57
  4. Step 4: Simplify right side
    392,297.67x = 131,374,417,510.85
  5. Step 5: Solve for x
    x = 131,374,417,510.85/392,297.67
  6. Step 6: Final answer
    x = 334,884.52

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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.