Home / 307,531.20-461,296.80-188,817.60

Finding the Fourth Proportional to 307,531.20, 461,296.80 and 188,817.60

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Solution

The fourth proportional to 307,531.20, 461,296.80 and 188,817.60 is: 283,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,531.20 : 461,296.80 = 188,817.60 : x
  2. Step 2: Convert to fraction form
    307,531.20/461,296.80 = 188,817.60/x
  3. Step 3: Cross multiply
    307,531.20x = 461,296.80 × 188,817.60
  4. Step 4: Simplify right side
    307,531.20x = 87,100,954,663.68
  5. Step 5: Solve for x
    x = 87,100,954,663.68/307,531.20
  6. Step 6: Final answer
    x = 283,226.40

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1.5x scale

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.