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Finding the Fourth Proportional to 400,287.48, 552,205.86 and 247,270.56

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Solution

The fourth proportional to 400,287.48, 552,205.86 and 247,270.56 is: 341,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,287.48 : 552,205.86 = 247,270.56 : x
  2. Step 2: Convert to fraction form
    400,287.48/552,205.86 = 247,270.56/x
  3. Step 3: Cross multiply
    400,287.48x = 552,205.86 × 247,270.56
  4. Step 4: Simplify right side
    400,287.48x = 136,544,252,237.48
  5. Step 5: Solve for x
    x = 136,544,252,237.48/400,287.48
  6. Step 6: Final answer
    x = 341,115.47

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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.