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Finding the Fourth Proportional to 449,652.96, 620,468 and 268,331.28

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Solution

The fourth proportional to 449,652.96, 620,468 and 268,331.28 is: 370,265.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,652.96 : 620,468 = 268,331.28 : x
  2. Step 2: Convert to fraction form
    449,652.96/620,468 = 268,331.28/x
  3. Step 3: Cross multiply
    449,652.96x = 620,468 × 268,331.28
  4. Step 4: Simplify right side
    449,652.96x = 166,490,972,639.04
  5. Step 5: Solve for x
    x = 166,490,972,639.04/449,652.96
  6. Step 6: Final answer
    x = 370,265.49

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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.