Home / 276,219.01-381,178.51-155,360.26

Finding the Fourth Proportional to 276,219.01, 381,178.51 and 155,360.26

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Solution

The fourth proportional to 276,219.01, 381,178.51 and 155,360.26 is: 214,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,219.01 : 381,178.51 = 155,360.26 : x
  2. Step 2: Convert to fraction form
    276,219.01/381,178.51 = 155,360.26/x
  3. Step 3: Cross multiply
    276,219.01x = 381,178.51 × 155,360.26
  4. Step 4: Simplify right side
    276,219.01x = 59,219,992,508.09
  5. Step 5: Solve for x
    x = 59,219,992,508.09/276,219.01
  6. Step 6: Final answer
    x = 214,395.06

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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.