Home / 276,464.28-381,521.40-155,607.36

Finding the Fourth Proportional to 276,464.28, 381,521.40 and 155,607.36

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Solution

The fourth proportional to 276,464.28, 381,521.40 and 155,607.36 is: 214,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,464.28 : 381,521.40 = 155,607.36 : x
  2. Step 2: Convert to fraction form
    276,464.28/381,521.40 = 155,607.36/x
  3. Step 3: Cross multiply
    276,464.28x = 381,521.40 × 155,607.36
  4. Step 4: Simplify right side
    276,464.28x = 59,367,537,837.50
  5. Step 5: Solve for x
    x = 59,367,537,837.50/276,464.28
  6. Step 6: Final answer
    x = 214,738.55

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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.