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Finding the Fourth Proportional to 276,431.64, 414,215.46 and 192,356.07

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Solution

The fourth proportional to 276,431.64, 414,215.46 and 192,356.07 is: 288,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,431.64 : 414,215.46 = 192,356.07 : x
  2. Step 2: Convert to fraction form
    276,431.64/414,215.46 = 192,356.07/x
  3. Step 3: Cross multiply
    276,431.64x = 414,215.46 × 192,356.07
  4. Step 4: Simplify right side
    276,431.64x = 79,676,858,018.84
  5. Step 5: Solve for x
    x = 79,676,858,018.84/276,431.64
  6. Step 6: Final answer
    x = 288,233.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.