Home / 276,603.12-381,680.71-155,741.30

Finding the Fourth Proportional to 276,603.12, 381,680.71 and 155,741.30

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Solution

The fourth proportional to 276,603.12, 381,680.71 and 155,741.30 is: 214,905.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,603.12 : 381,680.71 = 155,741.30 : x
  2. Step 2: Convert to fraction form
    276,603.12/381,680.71 = 155,741.30/x
  3. Step 3: Cross multiply
    276,603.12x = 381,680.71 × 155,741.30
  4. Step 4: Simplify right side
    276,603.12x = 59,443,449,093.87
  5. Step 5: Solve for x
    x = 59,443,449,093.87/276,603.12
  6. Step 6: Final answer
    x = 214,905.20

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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.