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Finding the Fourth Proportional to 276,110.16, 414,165.84 and 76,431.12

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Solution

The fourth proportional to 276,110.16, 414,165.84 and 76,431.12 is: 114,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,110.16 : 414,165.84 = 76,431.12 : x
  2. Step 2: Convert to fraction form
    276,110.16/414,165.84 = 76,431.12/x
  3. Step 3: Cross multiply
    276,110.16x = 414,165.84 × 76,431.12
  4. Step 4: Simplify right side
    276,110.16x = 31,655,159,016.94
  5. Step 5: Solve for x
    x = 31,655,159,016.94/276,110.16
  6. Step 6: Final answer
    x = 114,646.85

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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.