Home / 307,830.80-461,746.20-141,942.80

Finding the Fourth Proportional to 307,830.80, 461,746.20 and 141,942.80

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Solution

The fourth proportional to 307,830.80, 461,746.20 and 141,942.80 is: 212,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,830.80 : 461,746.20 = 141,942.80 : x
  2. Step 2: Convert to fraction form
    307,830.80/461,746.20 = 141,942.80/x
  3. Step 3: Cross multiply
    307,830.80x = 461,746.20 × 141,942.80
  4. Step 4: Simplify right side
    307,830.80x = 65,541,548,517.36
  5. Step 5: Solve for x
    x = 65,541,548,517.36/307,830.80
  6. Step 6: Final answer
    x = 212,914.20

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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.