Home / 276,685.08-381,835.64-154,188.48

Finding the Fourth Proportional to 276,685.08, 381,835.64 and 154,188.48

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Solution

The fourth proportional to 276,685.08, 381,835.64 and 154,188.48 is: 212,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,685.08 : 381,835.64 = 154,188.48 : x
  2. Step 2: Convert to fraction form
    276,685.08/381,835.64 = 154,188.48/x
  3. Step 3: Cross multiply
    276,685.08x = 381,835.64 × 154,188.48
  4. Step 4: Simplify right side
    276,685.08x = 58,874,656,941.43
  5. Step 5: Solve for x
    x = 58,874,656,941.43/276,685.08
  6. Step 6: Final answer
    x = 212,785.80

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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.