Home / 276,108.48-381,218.45-211,463.49

Finding the Fourth Proportional to 276,108.48, 381,218.45 and 211,463.49

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Solution

The fourth proportional to 276,108.48, 381,218.45 and 211,463.49 is: 291,964.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,108.48 : 381,218.45 = 211,463.49 : x
  2. Step 2: Convert to fraction form
    276,108.48/381,218.45 = 211,463.49/x
  3. Step 3: Cross multiply
    276,108.48x = 381,218.45 × 211,463.49
  4. Step 4: Simplify right side
    276,108.48x = 80,613,782,832.07
  5. Step 5: Solve for x
    x = 80,613,782,832.07/276,108.48
  6. Step 6: Final answer
    x = 291,964.17

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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.