Home / 307,556.20-461,334.30-213,077.80

Finding the Fourth Proportional to 307,556.20, 461,334.30 and 213,077.80

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Solution

The fourth proportional to 307,556.20, 461,334.30 and 213,077.80 is: 319,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,556.20 : 461,334.30 = 213,077.80 : x
  2. Step 2: Convert to fraction form
    307,556.20/461,334.30 = 213,077.80/x
  3. Step 3: Cross multiply
    307,556.20x = 461,334.30 × 213,077.80
  4. Step 4: Simplify right side
    307,556.20x = 98,300,097,708.54
  5. Step 5: Solve for x
    x = 98,300,097,708.54/307,556.20
  6. Step 6: Final answer
    x = 319,616.70

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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.