Home / 307,918.40-461,877.60-189,204.80

Finding the Fourth Proportional to 307,918.40, 461,877.60 and 189,204.80

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Solution

The fourth proportional to 307,918.40, 461,877.60 and 189,204.80 is: 283,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,918.40 : 461,877.60 = 189,204.80 : x
  2. Step 2: Convert to fraction form
    307,918.40/461,877.60 = 189,204.80/x
  3. Step 3: Cross multiply
    307,918.40x = 461,877.60 × 189,204.80
  4. Step 4: Simplify right side
    307,918.40x = 87,389,458,932.48
  5. Step 5: Solve for x
    x = 87,389,458,932.48/307,918.40
  6. Step 6: Final answer
    x = 283,807.20

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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.