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Finding the Fourth Proportional to 388,751.36, 580,997.12 and 283,791.36

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Solution

The fourth proportional to 388,751.36, 580,997.12 and 283,791.36 is: 424,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,751.36 : 580,997.12 = 283,791.36 : x
  2. Step 2: Convert to fraction form
    388,751.36/580,997.12 = 283,791.36/x
  3. Step 3: Cross multiply
    388,751.36x = 580,997.12 × 283,791.36
  4. Step 4: Simplify right side
    388,751.36x = 164,881,962,840.88
  5. Step 5: Solve for x
    x = 164,881,962,840.88/388,751.36
  6. Step 6: Final answer
    x = 424,132.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.