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Finding the Fourth Proportional to 449,357.96, 620,112.51 and 268,077.53

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Solution

The fourth proportional to 449,357.96, 620,112.51 and 268,077.53 is: 369,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,357.96 : 620,112.51 = 268,077.53 : x
  2. Step 2: Convert to fraction form
    449,357.96/620,112.51 = 268,077.53/x
  3. Step 3: Cross multiply
    449,357.96x = 620,112.51 × 268,077.53
  4. Step 4: Simplify right side
    449,357.96x = 166,238,231,553.18
  5. Step 5: Solve for x
    x = 166,238,231,553.18/449,357.96
  6. Step 6: Final answer
    x = 369,946.11

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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.