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Finding the Fourth Proportional to 339,666.56, 468,844.29 and 218,807.47

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Solution

The fourth proportional to 339,666.56, 468,844.29 and 218,807.47 is: 302,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,666.56 : 468,844.29 = 218,807.47 : x
  2. Step 2: Convert to fraction form
    339,666.56/468,844.29 = 218,807.47/x
  3. Step 3: Cross multiply
    339,666.56x = 468,844.29 × 218,807.47
  4. Step 4: Simplify right side
    339,666.56x = 102,586,632,801.67
  5. Step 5: Solve for x
    x = 102,586,632,801.67/339,666.56
  6. Step 6: Final answer
    x = 302,021.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.