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Finding the Fourth Proportional to 449,379.84, 620,112.96 and 248,160

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Solution

The fourth proportional to 449,379.84, 620,112.96 and 248,160 is: 342,443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,379.84 : 620,112.96 = 248,160 : x
  2. Step 2: Convert to fraction form
    449,379.84/620,112.96 = 248,160/x
  3. Step 3: Cross multiply
    449,379.84x = 620,112.96 × 248,160
  4. Step 4: Simplify right side
    449,379.84x = 153,887,232,153.60
  5. Step 5: Solve for x
    x = 153,887,232,153.60/449,379.84
  6. Step 6: Final answer
    x = 342,443.56

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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.