Home / 276,477.28-381,497.11-155,611.37

Finding the Fourth Proportional to 276,477.28, 381,497.11 and 155,611.37

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Solution

The fourth proportional to 276,477.28, 381,497.11 and 155,611.37 is: 214,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,477.28 : 381,497.11 = 155,611.37 : x
  2. Step 2: Convert to fraction form
    276,477.28/381,497.11 = 155,611.37/x
  3. Step 3: Cross multiply
    276,477.28x = 381,497.11 × 155,611.37
  4. Step 4: Simplify right side
    276,477.28x = 59,365,288,502.86
  5. Step 5: Solve for x
    x = 59,365,288,502.86/276,477.28
  6. Step 6: Final answer
    x = 214,720.32

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1.5x scale

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.