Home / 276,336.02-381,316.48-155,474.64

Finding the Fourth Proportional to 276,336.02, 381,316.48 and 155,474.64

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Solution

The fourth proportional to 276,336.02, 381,316.48 and 155,474.64 is: 214,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,336.02 : 381,316.48 = 155,474.64 : x
  2. Step 2: Convert to fraction form
    276,336.02/381,316.48 = 155,474.64/x
  3. Step 3: Cross multiply
    276,336.02x = 381,316.48 × 155,474.64
  4. Step 4: Simplify right side
    276,336.02x = 59,285,042,454.07
  5. Step 5: Solve for x
    x = 59,285,042,454.07/276,336.02
  6. Step 6: Final answer
    x = 214,539.68

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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.