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Finding the Fourth Proportional to 216,325.48, 323,698.78 and 127,621.48

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Solution

The fourth proportional to 216,325.48, 323,698.78 and 127,621.48 is: 190,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,325.48 : 323,698.78 = 127,621.48 : x
  2. Step 2: Convert to fraction form
    216,325.48/323,698.78 = 127,621.48/x
  3. Step 3: Cross multiply
    216,325.48x = 323,698.78 × 127,621.48
  4. Step 4: Simplify right side
    216,325.48x = 41,310,917,377.79
  5. Step 5: Solve for x
    x = 41,310,917,377.79/216,325.48
  6. Step 6: Final answer
    x = 190,966.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.