Home / 204,821.20-307,231.80-133,962.40

Finding the Fourth Proportional to 204,821.20, 307,231.80 and 133,962.40

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Solution

The fourth proportional to 204,821.20, 307,231.80 and 133,962.40 is: 200,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,821.20 : 307,231.80 = 133,962.40 : x
  2. Step 2: Convert to fraction form
    204,821.20/307,231.80 = 133,962.40/x
  3. Step 3: Cross multiply
    204,821.20x = 307,231.80 × 133,962.40
  4. Step 4: Simplify right side
    204,821.20x = 41,157,509,284.32
  5. Step 5: Solve for x
    x = 41,157,509,284.32/204,821.20
  6. Step 6: Final answer
    x = 200,943.60

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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.