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Finding the Fourth Proportional to 344,763, 517,319.46 and 157,821.48

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Solution

The fourth proportional to 344,763, 517,319.46 and 157,821.48 is: 236,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,763 : 517,319.46 = 157,821.48 : x
  2. Step 2: Convert to fraction form
    344,763/517,319.46 = 157,821.48/x
  3. Step 3: Cross multiply
    344,763x = 517,319.46 × 157,821.48
  4. Step 4: Simplify right side
    344,763x = 81,644,122,810.00
  5. Step 5: Solve for x
    x = 81,644,122,810.00/344,763
  6. Step 6: Final answer
    x = 236,812.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.