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Finding the Fourth Proportional to 339,773.66, 509,663.50 and 103,116.30

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Solution

The fourth proportional to 339,773.66, 509,663.50 and 103,116.30 is: 154,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,773.66 : 509,663.50 = 103,116.30 : x
  2. Step 2: Convert to fraction form
    339,773.66/509,663.50 = 103,116.30/x
  3. Step 3: Cross multiply
    339,773.66x = 509,663.50 × 103,116.30
  4. Step 4: Simplify right side
    339,773.66x = 52,554,614,365.05
  5. Step 5: Solve for x
    x = 52,554,614,365.05/339,773.66
  6. Step 6: Final answer
    x = 154,675.36

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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.