Home / 276,120.41-381,038.55-155,258.58

Finding the Fourth Proportional to 276,120.41, 381,038.55 and 155,258.58

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Solution

The fourth proportional to 276,120.41, 381,038.55 and 155,258.58 is: 214,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,120.41 : 381,038.55 = 155,258.58 : x
  2. Step 2: Convert to fraction form
    276,120.41/381,038.55 = 155,258.58/x
  3. Step 3: Cross multiply
    276,120.41x = 381,038.55 × 155,258.58
  4. Step 4: Simplify right side
    276,120.41x = 59,159,505,044.93
  5. Step 5: Solve for x
    x = 59,159,505,044.93/276,120.41
  6. Step 6: Final answer
    x = 214,252.57

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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.