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Finding the Fourth Proportional to 339,630.12, 509,413.94 and 114,964.87

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Solution

The fourth proportional to 339,630.12, 509,413.94 and 114,964.87 is: 172,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,630.12 : 509,413.94 = 114,964.87 : x
  2. Step 2: Convert to fraction form
    339,630.12/509,413.94 = 114,964.87/x
  3. Step 3: Cross multiply
    339,630.12x = 509,413.94 × 114,964.87
  4. Step 4: Simplify right side
    339,630.12x = 58,564,706,813.46
  5. Step 5: Solve for x
    x = 58,564,706,813.46/339,630.12
  6. Step 6: Final answer
    x = 172,436.73

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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.