Home / 315,340.49-472,729.50-115,614.33

Finding the Fourth Proportional to 315,340.49, 472,729.50 and 115,614.33

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Solution

The fourth proportional to 315,340.49, 472,729.50 and 115,614.33 is: 173,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,340.49 : 472,729.50 = 115,614.33 : x
  2. Step 2: Convert to fraction form
    315,340.49/472,729.50 = 115,614.33/x
  3. Step 3: Cross multiply
    315,340.49x = 472,729.50 × 115,614.33
  4. Step 4: Simplify right side
    315,340.49x = 54,654,304,413.74
  5. Step 5: Solve for x
    x = 54,654,304,413.74/315,340.49
  6. Step 6: Final answer
    x = 173,318.39

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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.