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Finding the Fourth Proportional to 377,656.64, 521,172.80 and 205,579.55

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Solution

The fourth proportional to 377,656.64, 521,172.80 and 205,579.55 is: 283,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,656.64 : 521,172.80 = 205,579.55 : x
  2. Step 2: Convert to fraction form
    377,656.64/521,172.80 = 205,579.55/x
  3. Step 3: Cross multiply
    377,656.64x = 521,172.80 × 205,579.55
  4. Step 4: Simplify right side
    377,656.64x = 107,142,469,696.24
  5. Step 5: Solve for x
    x = 107,142,469,696.24/377,656.64
  6. Step 6: Final answer
    x = 283,703.39

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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.