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Finding the Fourth Proportional to 301,960.40, 453,199.80 and 133,739.60

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Solution

The fourth proportional to 301,960.40, 453,199.80 and 133,739.60 is: 200,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,960.40 : 453,199.80 = 133,739.60 : x
  2. Step 2: Convert to fraction form
    301,960.40/453,199.80 = 133,739.60/x
  3. Step 3: Cross multiply
    301,960.40x = 453,199.80 × 133,739.60
  4. Step 4: Simplify right side
    301,960.40x = 60,610,759,972.08
  5. Step 5: Solve for x
    x = 60,610,759,972.08/301,960.40
  6. Step 6: Final answer
    x = 200,724.20

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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.