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Finding the Fourth Proportional to 276,166, 414,254.04 and 86,622.12

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Solution

The fourth proportional to 276,166, 414,254.04 and 86,622.12 is: 129,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,166 : 414,254.04 = 86,622.12 : x
  2. Step 2: Convert to fraction form
    276,166/414,254.04 = 86,622.12/x
  3. Step 3: Cross multiply
    276,166x = 414,254.04 × 86,622.12
  4. Step 4: Simplify right side
    276,166x = 35,883,563,163.36
  5. Step 5: Solve for x
    x = 35,883,563,163.36/276,166
  6. Step 6: Final answer
    x = 129,934.76

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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.