Home / 299,983.60-449,975.40-122,431.60

Finding the Fourth Proportional to 299,983.60, 449,975.40 and 122,431.60

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Solution

The fourth proportional to 299,983.60, 449,975.40 and 122,431.60 is: 183,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,983.60 : 449,975.40 = 122,431.60 : x
  2. Step 2: Convert to fraction form
    299,983.60/449,975.40 = 122,431.60/x
  3. Step 3: Cross multiply
    299,983.60x = 449,975.40 × 122,431.60
  4. Step 4: Simplify right side
    299,983.60x = 55,091,208,182.64
  5. Step 5: Solve for x
    x = 55,091,208,182.64/299,983.60
  6. Step 6: Final answer
    x = 183,647.40

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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.