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Finding the Fourth Proportional to 272,469.51, 408,699.54 and 122,603.76

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Solution

The fourth proportional to 272,469.51, 408,699.54 and 122,603.76 is: 183,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,469.51 : 408,699.54 = 122,603.76 : x
  2. Step 2: Convert to fraction form
    272,469.51/408,699.54 = 122,603.76/x
  3. Step 3: Cross multiply
    272,469.51x = 408,699.54 × 122,603.76
  4. Step 4: Simplify right side
    272,469.51x = 50,108,100,314.27
  5. Step 5: Solve for x
    x = 50,108,100,314.27/272,469.51
  6. Step 6: Final answer
    x = 183,903.51

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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.