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Finding the Fourth Proportional to 555,413.40, 832,947.81 and 200,381.26

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Solution

The fourth proportional to 555,413.40, 832,947.81 and 200,381.26 is: 300,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,413.40 : 832,947.81 = 200,381.26 : x
  2. Step 2: Convert to fraction form
    555,413.40/832,947.81 = 200,381.26/x
  3. Step 3: Cross multiply
    555,413.40x = 832,947.81 × 200,381.26
  4. Step 4: Simplify right side
    555,413.40x = 166,907,131,682.04
  5. Step 5: Solve for x
    x = 166,907,131,682.04/555,413.40
  6. Step 6: Final answer
    x = 300,509.73

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1.5x scale

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.