Home / 484,433.40-726,131.70-218,148.60

Finding the Fourth Proportional to 484,433.40, 726,131.70 and 218,148.60

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Solution

The fourth proportional to 484,433.40, 726,131.70 and 218,148.60 is: 326,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,433.40 : 726,131.70 = 218,148.60 : x
  2. Step 2: Convert to fraction form
    484,433.40/726,131.70 = 218,148.60/x
  3. Step 3: Cross multiply
    484,433.40x = 726,131.70 × 218,148.60
  4. Step 4: Simplify right side
    484,433.40x = 158,404,613,770.62
  5. Step 5: Solve for x
    x = 158,404,613,770.62/484,433.40
  6. Step 6: Final answer
    x = 326,989.46

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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.