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Finding the Fourth Proportional to 339,971.67, 508,699.67 and 205,113.96

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Solution

The fourth proportional to 339,971.67, 508,699.67 and 205,113.96 is: 306,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,971.67 : 508,699.67 = 205,113.96 : x
  2. Step 2: Convert to fraction form
    339,971.67/508,699.67 = 205,113.96/x
  3. Step 3: Cross multiply
    339,971.67x = 508,699.67 × 205,113.96
  4. Step 4: Simplify right side
    339,971.67x = 104,341,402,738.82
  5. Step 5: Solve for x
    x = 104,341,402,738.82/339,971.67
  6. Step 6: Final answer
    x = 306,912.05

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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.