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Finding the Fourth Proportional to 256,828.82, 385,147.44 and 88,301.43

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Solution

The fourth proportional to 256,828.82, 385,147.44 and 88,301.43 is: 132,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,828.82 : 385,147.44 = 88,301.43 : x
  2. Step 2: Convert to fraction form
    256,828.82/385,147.44 = 88,301.43/x
  3. Step 3: Cross multiply
    256,828.82x = 385,147.44 × 88,301.43
  4. Step 4: Simplify right side
    256,828.82x = 34,009,069,712.84
  5. Step 5: Solve for x
    x = 34,009,069,712.84/256,828.82
  6. Step 6: Final answer
    x = 132,419.21

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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.