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Finding the Fourth Proportional to 375,584.72, 518,307.36 and 205,819.28

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Solution

The fourth proportional to 375,584.72, 518,307.36 and 205,819.28 is: 284,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,584.72 : 518,307.36 = 205,819.28 : x
  2. Step 2: Convert to fraction form
    375,584.72/518,307.36 = 205,819.28/x
  3. Step 3: Cross multiply
    375,584.72x = 518,307.36 × 205,819.28
  4. Step 4: Simplify right side
    375,584.72x = 106,677,647,653.90
  5. Step 5: Solve for x
    x = 106,677,647,653.90/375,584.72
  6. Step 6: Final answer
    x = 284,030.85

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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.