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Finding the Fourth Proportional to 256,995.48, 354,652.92 and 143,817.96

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Solution

The fourth proportional to 256,995.48, 354,652.92 and 143,817.96 is: 198,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,995.48 : 354,652.92 = 143,817.96 : x
  2. Step 2: Convert to fraction form
    256,995.48/354,652.92 = 143,817.96/x
  3. Step 3: Cross multiply
    256,995.48x = 354,652.92 × 143,817.96
  4. Step 4: Simplify right side
    256,995.48x = 51,005,459,462.44
  5. Step 5: Solve for x
    x = 51,005,459,462.44/256,995.48
  6. Step 6: Final answer
    x = 198,468.31

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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.