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Finding the Fourth Proportional to 276,678.59, 381,830.67 and 169,214.88

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Solution

The fourth proportional to 276,678.59, 381,830.67 and 169,214.88 is: 233,525.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,678.59 : 381,830.67 = 169,214.88 : x
  2. Step 2: Convert to fraction form
    276,678.59/381,830.67 = 169,214.88/x
  3. Step 3: Cross multiply
    276,678.59x = 381,830.67 × 169,214.88
  4. Step 4: Simplify right side
    276,678.59x = 64,611,431,004.37
  5. Step 5: Solve for x
    x = 64,611,431,004.37/276,678.59
  6. Step 6: Final answer
    x = 233,525.23

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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.