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Finding the Fourth Proportional to 235,519.65, 325,014.39 and 128,087.33

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Solution

The fourth proportional to 235,519.65, 325,014.39 and 128,087.33 is: 176,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,519.65 : 325,014.39 = 128,087.33 : x
  2. Step 2: Convert to fraction form
    235,519.65/325,014.39 = 128,087.33/x
  3. Step 3: Cross multiply
    235,519.65x = 325,014.39 × 128,087.33
  4. Step 4: Simplify right side
    235,519.65x = 41,630,223,801.61
  5. Step 5: Solve for x
    x = 41,630,223,801.61/235,519.65
  6. Step 6: Final answer
    x = 176,759.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.