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Finding the Fourth Proportional to 451,090.05, 622,504.25 and 247,148.70

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Solution

The fourth proportional to 451,090.05, 622,504.25 and 247,148.70 is: 341,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,090.05 : 622,504.25 = 247,148.70 : x
  2. Step 2: Convert to fraction form
    451,090.05/622,504.25 = 247,148.70/x
  3. Step 3: Cross multiply
    451,090.05x = 622,504.25 × 247,148.70
  4. Step 4: Simplify right side
    451,090.05x = 153,851,116,131.98
  5. Step 5: Solve for x
    x = 153,851,116,131.98/451,090.05
  6. Step 6: Final answer
    x = 341,065.20

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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.