Home / 276,513.64-381,385.09-208,533.48

Finding the Fourth Proportional to 276,513.64, 381,385.09 and 208,533.48

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Solution

The fourth proportional to 276,513.64, 381,385.09 and 208,533.48 is: 287,622.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,513.64 : 381,385.09 = 208,533.48 : x
  2. Step 2: Convert to fraction form
    276,513.64/381,385.09 = 208,533.48/x
  3. Step 3: Cross multiply
    276,513.64x = 381,385.09 × 208,533.48
  4. Step 4: Simplify right side
    276,513.64x = 79,531,560,037.81
  5. Step 5: Solve for x
    x = 79,531,560,037.81/276,513.64
  6. Step 6: Final answer
    x = 287,622.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.