Home / 276,228.48-381,191.40-155,369.64

Finding the Fourth Proportional to 276,228.48, 381,191.40 and 155,369.64

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Solution

The fourth proportional to 276,228.48, 381,191.40 and 155,369.64 is: 214,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,228.48 : 381,191.40 = 155,369.64 : x
  2. Step 2: Convert to fraction form
    276,228.48/381,191.40 = 155,369.64/x
  3. Step 3: Cross multiply
    276,228.48x = 381,191.40 × 155,369.64
  4. Step 4: Simplify right side
    276,228.48x = 59,225,570,589.10
  5. Step 5: Solve for x
    x = 59,225,570,589.10/276,228.48
  6. Step 6: Final answer
    x = 214,407.91

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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.