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Finding the Fourth Proportional to 309,657.44, 427,366.72 and 182,344.88

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Solution

The fourth proportional to 309,657.44, 427,366.72 and 182,344.88 is: 251,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,657.44 : 427,366.72 = 182,344.88 : x
  2. Step 2: Convert to fraction form
    309,657.44/427,366.72 = 182,344.88/x
  3. Step 3: Cross multiply
    309,657.44x = 427,366.72 × 182,344.88
  4. Step 4: Simplify right side
    309,657.44x = 77,928,133,274.39
  5. Step 5: Solve for x
    x = 77,928,133,274.39/309,657.44
  6. Step 6: Final answer
    x = 251,659.17

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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.