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Finding the Fourth Proportional to 256,906.20, 385,359.30 and 246,408.60

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Solution

The fourth proportional to 256,906.20, 385,359.30 and 246,408.60 is: 369,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,906.20 : 385,359.30 = 246,408.60 : x
  2. Step 2: Convert to fraction form
    256,906.20/385,359.30 = 246,408.60/x
  3. Step 3: Cross multiply
    256,906.20x = 385,359.30 × 246,408.60
  4. Step 4: Simplify right side
    256,906.20x = 94,955,845,609.98
  5. Step 5: Solve for x
    x = 94,955,845,609.98/256,906.20
  6. Step 6: Final answer
    x = 369,612.90

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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.