Home / 408,813.27-613,173.09-109,317.18

Finding the Fourth Proportional to 408,813.27, 613,173.09 and 109,317.18

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Solution

The fourth proportional to 408,813.27, 613,173.09 and 109,317.18 is: 163,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,813.27 : 613,173.09 = 109,317.18 : x
  2. Step 2: Convert to fraction form
    408,813.27/613,173.09 = 109,317.18/x
  3. Step 3: Cross multiply
    408,813.27x = 613,173.09 × 109,317.18
  4. Step 4: Simplify right side
    408,813.27x = 67,030,353,050.69
  5. Step 5: Solve for x
    x = 67,030,353,050.69/408,813.27
  6. Step 6: Final answer
    x = 163,963.25

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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.