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Finding the Fourth Proportional to 307,450.20, 461,369.70 and 181,090.20

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Solution

The fourth proportional to 307,450.20, 461,369.70 and 181,090.20 is: 271,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,450.20 : 461,369.70 = 181,090.20 : x
  2. Step 2: Convert to fraction form
    307,450.20/461,369.70 = 181,090.20/x
  3. Step 3: Cross multiply
    307,450.20x = 461,369.70 × 181,090.20
  4. Step 4: Simplify right side
    307,450.20x = 83,549,531,246.94
  5. Step 5: Solve for x
    x = 83,549,531,246.94/307,450.20
  6. Step 6: Final answer
    x = 271,749.80

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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.