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Finding the Fourth Proportional to 375,372.36, 518,013.98 and 205,612.60

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Solution

The fourth proportional to 375,372.36, 518,013.98 and 205,612.60 is: 283,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,372.36 : 518,013.98 = 205,612.60 : x
  2. Step 2: Convert to fraction form
    375,372.36/518,013.98 = 205,612.60/x
  3. Step 3: Cross multiply
    375,372.36x = 518,013.98 × 205,612.60
  4. Step 4: Simplify right side
    375,372.36x = 106,510,201,264.15
  5. Step 5: Solve for x
    x = 106,510,201,264.15/375,372.36
  6. Step 6: Final answer
    x = 283,745.46

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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.