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Finding the Fourth Proportional to 451,076.42, 622,485.36 and 247,134.57

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Solution

The fourth proportional to 451,076.42, 622,485.36 and 247,134.57 is: 341,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,076.42 : 622,485.36 = 247,134.57 : x
  2. Step 2: Convert to fraction form
    451,076.42/622,485.36 = 247,134.57/x
  3. Step 3: Cross multiply
    451,076.42x = 622,485.36 × 247,134.57
  4. Step 4: Simplify right side
    451,076.42x = 153,837,651,774.90
  5. Step 5: Solve for x
    x = 153,837,651,774.90/451,076.42
  6. Step 6: Final answer
    x = 341,045.66

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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.