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Finding the Fourth Proportional to 450,076.56, 621,167.40 and 271,194

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Solution

The fourth proportional to 450,076.56, 621,167.40 and 271,194 is: 374,284.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,076.56 : 621,167.40 = 271,194 : x
  2. Step 2: Convert to fraction form
    450,076.56/621,167.40 = 271,194/x
  3. Step 3: Cross multiply
    450,076.56x = 621,167.40 × 271,194
  4. Step 4: Simplify right side
    450,076.56x = 168,456,871,875.60
  5. Step 5: Solve for x
    x = 168,456,871,875.60/450,076.56
  6. Step 6: Final answer
    x = 374,284.93

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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.