Home / 351,968.23-485,679.78-216,007.90

Finding the Fourth Proportional to 351,968.23, 485,679.78 and 216,007.90

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Solution

The fourth proportional to 351,968.23, 485,679.78 and 216,007.90 is: 298,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,968.23 : 485,679.78 = 216,007.90 : x
  2. Step 2: Convert to fraction form
    351,968.23/485,679.78 = 216,007.90/x
  3. Step 3: Cross multiply
    351,968.23x = 485,679.78 × 216,007.90
  4. Step 4: Simplify right side
    351,968.23x = 104,910,669,350.26
  5. Step 5: Solve for x
    x = 104,910,669,350.26/351,968.23
  6. Step 6: Final answer
    x = 298,068.58

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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.