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Finding the Fourth Proportional to 449,285.82, 620,010.63 and 248,077.50

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Solution

The fourth proportional to 449,285.82, 620,010.63 and 248,077.50 is: 342,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,285.82 : 620,010.63 = 248,077.50 : x
  2. Step 2: Convert to fraction form
    449,285.82/620,010.63 = 248,077.50/x
  3. Step 3: Cross multiply
    449,285.82x = 620,010.63 × 248,077.50
  4. Step 4: Simplify right side
    449,285.82x = 153,810,687,063.83
  5. Step 5: Solve for x
    x = 153,810,687,063.83/449,285.82
  6. Step 6: Final answer
    x = 342,344.85

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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.