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Finding the Fourth Proportional to 256,322.85, 351,156.47 and 246,739.20

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Solution

The fourth proportional to 256,322.85, 351,156.47 and 246,739.20 is: 338,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,322.85 : 351,156.47 = 246,739.20 : x
  2. Step 2: Convert to fraction form
    256,322.85/351,156.47 = 246,739.20/x
  3. Step 3: Cross multiply
    256,322.85x = 351,156.47 × 246,739.20
  4. Step 4: Simplify right side
    256,322.85x = 86,644,067,099.47
  5. Step 5: Solve for x
    x = 86,644,067,099.47/256,322.85
  6. Step 6: Final answer
    x = 338,027.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.