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Finding the Fourth Proportional to 256,994.48, 354,651.54 and 143,816.96

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Solution

The fourth proportional to 256,994.48, 354,651.54 and 143,816.96 is: 198,466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,994.48 : 354,651.54 = 143,816.96 : x
  2. Step 2: Convert to fraction form
    256,994.48/354,651.54 = 143,816.96/x
  3. Step 3: Cross multiply
    256,994.48x = 354,651.54 × 143,816.96
  4. Step 4: Simplify right side
    256,994.48x = 51,004,906,342.12
  5. Step 5: Solve for x
    x = 51,004,906,342.12/256,994.48
  6. Step 6: Final answer
    x = 198,466.93

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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.