Home / 268,830.85-403,247.41-108,909.89

Finding the Fourth Proportional to 268,830.85, 403,247.41 and 108,909.89

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Solution

The fourth proportional to 268,830.85, 403,247.41 and 108,909.89 is: 163,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,830.85 : 403,247.41 = 108,909.89 : x
  2. Step 2: Convert to fraction form
    268,830.85/403,247.41 = 108,909.89/x
  3. Step 3: Cross multiply
    268,830.85x = 403,247.41 × 108,909.89
  4. Step 4: Simplify right side
    268,830.85x = 43,917,632,036.30
  5. Step 5: Solve for x
    x = 43,917,632,036.30/268,830.85
  6. Step 6: Final answer
    x = 163,365.30

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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.