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Finding the Fourth Proportional to 368,760.36, 552,353.22 and 280,055.64

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Solution

The fourth proportional to 368,760.36, 552,353.22 and 280,055.64 is: 419,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,760.36 : 552,353.22 = 280,055.64 : x
  2. Step 2: Convert to fraction form
    368,760.36/552,353.22 = 280,055.64/x
  3. Step 3: Cross multiply
    368,760.36x = 552,353.22 × 280,055.64
  4. Step 4: Simplify right side
    368,760.36x = 154,689,634,533.16
  5. Step 5: Solve for x
    x = 154,689,634,533.16/368,760.36
  6. Step 6: Final answer
    x = 419,485.53

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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.