Home / 321,026.03-481,735.87-143,683.01

Finding the Fourth Proportional to 321,026.03, 481,735.87 and 143,683.01

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Solution

The fourth proportional to 321,026.03, 481,735.87 and 143,683.01 is: 215,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,026.03 : 481,735.87 = 143,683.01 : x
  2. Step 2: Convert to fraction form
    321,026.03/481,735.87 = 143,683.01/x
  3. Step 3: Cross multiply
    321,026.03x = 481,735.87 × 143,683.01
  4. Step 4: Simplify right side
    321,026.03x = 69,217,257,058.68
  5. Step 5: Solve for x
    x = 69,217,257,058.68/321,026.03
  6. Step 6: Final answer
    x = 215,612.60

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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.