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Finding the Fourth Proportional to 286,515.61, 395,393.88 and 179,147.88

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Solution

The fourth proportional to 286,515.61, 395,393.88 and 179,147.88 is: 247,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,515.61 : 395,393.88 = 179,147.88 : x
  2. Step 2: Convert to fraction form
    286,515.61/395,393.88 = 179,147.88/x
  3. Step 3: Cross multiply
    286,515.61x = 395,393.88 × 179,147.88
  4. Step 4: Simplify right side
    286,515.61x = 70,833,975,366.97
  5. Step 5: Solve for x
    x = 70,833,975,366.97/286,515.61
  6. Step 6: Final answer
    x = 247,225.54

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Why These Related Problems?

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