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Finding the Fourth Proportional to 251,636.88, 376,911 and 118,317.36

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Solution

The fourth proportional to 251,636.88, 376,911 and 118,317.36 is: 177,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,636.88 : 376,911 = 118,317.36 : x
  2. Step 2: Convert to fraction form
    251,636.88/376,911 = 118,317.36/x
  3. Step 3: Cross multiply
    251,636.88x = 376,911 × 118,317.36
  4. Step 4: Simplify right side
    251,636.88x = 44,595,114,474.96
  5. Step 5: Solve for x
    x = 44,595,114,474.96/251,636.88
  6. Step 6: Final answer
    x = 177,220.11

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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.