Home / 276,164.17-381,102.93-155,305.42

Finding the Fourth Proportional to 276,164.17, 381,102.93 and 155,305.42

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Solution

The fourth proportional to 276,164.17, 381,102.93 and 155,305.42 is: 214,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,164.17 : 381,102.93 = 155,305.42 : x
  2. Step 2: Convert to fraction form
    276,164.17/381,102.93 = 155,305.42/x
  3. Step 3: Cross multiply
    276,164.17x = 381,102.93 × 155,305.42
  4. Step 4: Simplify right side
    276,164.17x = 59,187,349,654.12
  5. Step 5: Solve for x
    x = 59,187,349,654.12/276,164.17
  6. Step 6: Final answer
    x = 214,319.44

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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.