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Finding the Fourth Proportional to 256,490.88, 384,736.32 and 69,502.44

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Solution

The fourth proportional to 256,490.88, 384,736.32 and 69,502.44 is: 104,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,490.88 : 384,736.32 = 69,502.44 : x
  2. Step 2: Convert to fraction form
    256,490.88/384,736.32 = 69,502.44/x
  3. Step 3: Cross multiply
    256,490.88x = 384,736.32 × 69,502.44
  4. Step 4: Simplify right side
    256,490.88x = 26,740,112,996.62
  5. Step 5: Solve for x
    x = 26,740,112,996.62/256,490.88
  6. Step 6: Final answer
    x = 104,253.66

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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.