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Finding the Fourth Proportional to 251,375.85, 376,851.33 and 109,113.53

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Solution

The fourth proportional to 251,375.85, 376,851.33 and 109,113.53 is: 163,578.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,375.85 : 376,851.33 = 109,113.53 : x
  2. Step 2: Convert to fraction form
    251,375.85/376,851.33 = 109,113.53/x
  3. Step 3: Cross multiply
    251,375.85x = 376,851.33 × 109,113.53
  4. Step 4: Simplify right side
    251,375.85x = 41,119,578,901.49
  5. Step 5: Solve for x
    x = 41,119,578,901.49/251,375.85
  6. Step 6: Final answer
    x = 163,578.08

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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.