Home / 276,816.78-379,515.80-271,772.28

Finding the Fourth Proportional to 276,816.78, 379,515.80 and 271,772.28

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Solution

The fourth proportional to 276,816.78, 379,515.80 and 271,772.28 is: 372,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,816.78 : 379,515.80 = 271,772.28 : x
  2. Step 2: Convert to fraction form
    276,816.78/379,515.80 = 271,772.28/x
  3. Step 3: Cross multiply
    276,816.78x = 379,515.80 × 271,772.28
  4. Step 4: Simplify right side
    276,816.78x = 103,141,872,903.16
  5. Step 5: Solve for x
    x = 103,141,872,903.16/276,816.78
  6. Step 6: Final answer
    x = 372,599.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.