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Finding the Fourth Proportional to 245,447.94, 368,176.48 and 76,964.56

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Solution

The fourth proportional to 245,447.94, 368,176.48 and 76,964.56 is: 115,448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,447.94 : 368,176.48 = 76,964.56 : x
  2. Step 2: Convert to fraction form
    245,447.94/368,176.48 = 76,964.56/x
  3. Step 3: Cross multiply
    245,447.94x = 368,176.48 × 76,964.56
  4. Step 4: Simplify right side
    245,447.94x = 28,336,540,785.55
  5. Step 5: Solve for x
    x = 28,336,540,785.55/245,447.94
  6. Step 6: Final answer
    x = 115,448.27

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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.