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Finding the Fourth Proportional to 469,997.82, 648,597.81 and 255,138.03

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Solution

The fourth proportional to 469,997.82, 648,597.81 and 255,138.03 is: 352,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,997.82 : 648,597.81 = 255,138.03 : x
  2. Step 2: Convert to fraction form
    469,997.82/648,597.81 = 255,138.03/x
  3. Step 3: Cross multiply
    469,997.82x = 648,597.81 × 255,138.03
  4. Step 4: Simplify right side
    469,997.82x = 165,481,968,462.48
  5. Step 5: Solve for x
    x = 165,481,968,462.48/469,997.82
  6. Step 6: Final answer
    x = 352,090.93

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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.