Home / 347,729.76-521,385.12-189,738.72

Finding the Fourth Proportional to 347,729.76, 521,385.12 and 189,738.72

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Solution

The fourth proportional to 347,729.76, 521,385.12 and 189,738.72 is: 284,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,729.76 : 521,385.12 = 189,738.72 : x
  2. Step 2: Convert to fraction form
    347,729.76/521,385.12 = 189,738.72/x
  3. Step 3: Cross multiply
    347,729.76x = 521,385.12 × 189,738.72
  4. Step 4: Simplify right side
    347,729.76x = 98,926,945,295.85
  5. Step 5: Solve for x
    x = 98,926,945,295.85/347,729.76
  6. Step 6: Final answer
    x = 284,493.76

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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.