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Finding the Fourth Proportional to 208,999.67, 313,499.43 and 51,226.79

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Solution

The fourth proportional to 208,999.67, 313,499.43 and 51,226.79 is: 76,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,999.67 : 313,499.43 = 51,226.79 : x
  2. Step 2: Convert to fraction form
    208,999.67/313,499.43 = 51,226.79/x
  3. Step 3: Cross multiply
    208,999.67x = 313,499.43 × 51,226.79
  4. Step 4: Simplify right side
    208,999.67x = 16,059,567,898.23
  5. Step 5: Solve for x
    x = 16,059,567,898.23/208,999.67
  6. Step 6: Final answer
    x = 76,840.16

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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.