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Finding the Fourth Proportional to 286,956.84, 395,764.62 and 254,715

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Solution

The fourth proportional to 286,956.84, 395,764.62 and 254,715 is: 351,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,956.84 : 395,764.62 = 254,715 : x
  2. Step 2: Convert to fraction form
    286,956.84/395,764.62 = 254,715/x
  3. Step 3: Cross multiply
    286,956.84x = 395,764.62 × 254,715
  4. Step 4: Simplify right side
    286,956.84x = 100,807,185,183.30
  5. Step 5: Solve for x
    x = 100,807,185,183.30/286,956.84
  6. Step 6: Final answer
    x = 351,297.38

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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.