Home / 351,453.30-485,005.81-190,309.62

Finding the Fourth Proportional to 351,453.30, 485,005.81 and 190,309.62

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Solution

The fourth proportional to 351,453.30, 485,005.81 and 190,309.62 is: 262,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,453.30 : 485,005.81 = 190,309.62 : x
  2. Step 2: Convert to fraction form
    351,453.30/485,005.81 = 190,309.62/x
  3. Step 3: Cross multiply
    351,453.30x = 485,005.81 × 190,309.62
  4. Step 4: Simplify right side
    351,453.30x = 92,301,271,398.89
  5. Step 5: Solve for x
    x = 92,301,271,398.89/351,453.30
  6. Step 6: Final answer
    x = 262,627.41

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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.