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Finding the Fourth Proportional to 251,308.80, 376,923.60 and 208,886.64

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Solution

The fourth proportional to 251,308.80, 376,923.60 and 208,886.64 is: 313,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,308.80 : 376,923.60 = 208,886.64 : x
  2. Step 2: Convert to fraction form
    251,308.80/376,923.60 = 208,886.64/x
  3. Step 3: Cross multiply
    251,308.80x = 376,923.60 × 208,886.64
  4. Step 4: Simplify right side
    251,308.80x = 78,734,304,340.70
  5. Step 5: Solve for x
    x = 78,734,304,340.70/251,308.80
  6. Step 6: Final answer
    x = 313,297.04

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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.