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Finding the Fourth Proportional to 276,089.31, 414,143.21 and 76,392.92

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Solution

The fourth proportional to 276,089.31, 414,143.21 and 76,392.92 is: 114,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,089.31 : 414,143.21 = 76,392.92 : x
  2. Step 2: Convert to fraction form
    276,089.31/414,143.21 = 76,392.92/x
  3. Step 3: Cross multiply
    276,089.31x = 414,143.21 × 76,392.92
  4. Step 4: Simplify right side
    276,089.31x = 31,637,610,336.41
  5. Step 5: Solve for x
    x = 31,637,610,336.41/276,089.31
  6. Step 6: Final answer
    x = 114,591.94

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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.