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Finding the Fourth Proportional to 339,777.30, 509,347.62 and 114,980.36

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Solution

The fourth proportional to 339,777.30, 509,347.62 and 114,980.36 is: 172,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,777.30 : 509,347.62 = 114,980.36 : x
  2. Step 2: Convert to fraction form
    339,777.30/509,347.62 = 114,980.36/x
  3. Step 3: Cross multiply
    339,777.30x = 509,347.62 × 114,980.36
  4. Step 4: Simplify right side
    339,777.30x = 58,564,970,166.01
  5. Step 5: Solve for x
    x = 58,564,970,166.01/339,777.30
  6. Step 6: Final answer
    x = 172,362.81

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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.