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Finding the Fourth Proportional to 368,759.36, 552,351.72 and 280,054.64

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Solution

The fourth proportional to 368,759.36, 552,351.72 and 280,054.64 is: 419,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,759.36 : 552,351.72 = 280,054.64 : x
  2. Step 2: Convert to fraction form
    368,759.36/552,351.72 = 280,054.64/x
  3. Step 3: Cross multiply
    368,759.36x = 552,351.72 × 280,054.64
  4. Step 4: Simplify right side
    368,759.36x = 154,688,662,097.98
  5. Step 5: Solve for x
    x = 154,688,662,097.98/368,759.36
  6. Step 6: Final answer
    x = 419,484.03

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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.