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Finding the Fourth Proportional to 371,677.53, 557,493.74 and 131,803.30

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Solution

The fourth proportional to 371,677.53, 557,493.74 and 131,803.30 is: 197,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,677.53 : 557,493.74 = 131,803.30 : x
  2. Step 2: Convert to fraction form
    371,677.53/557,493.74 = 131,803.30/x
  3. Step 3: Cross multiply
    371,677.53x = 557,493.74 × 131,803.30
  4. Step 4: Simplify right side
    371,677.53x = 73,479,511,214.86
  5. Step 5: Solve for x
    x = 73,479,511,214.86/371,677.53
  6. Step 6: Final answer
    x = 197,696.94

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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.