Home / 307,942.20-461,135.70-245,734.20

Finding the Fourth Proportional to 307,942.20, 461,135.70 and 245,734.20

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Solution

The fourth proportional to 307,942.20, 461,135.70 and 245,734.20 is: 367,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,942.20 : 461,135.70 = 245,734.20 : x
  2. Step 2: Convert to fraction form
    307,942.20/461,135.70 = 245,734.20/x
  3. Step 3: Cross multiply
    307,942.20x = 461,135.70 × 245,734.20
  4. Step 4: Simplify right side
    307,942.20x = 113,316,812,330.94
  5. Step 5: Solve for x
    x = 113,316,812,330.94/307,942.20
  6. Step 6: Final answer
    x = 367,980.78

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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.