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Finding the Fourth Proportional to 287,467.58, 393,832.00 and 276,693.37

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Solution

The fourth proportional to 287,467.58, 393,832.00 and 276,693.37 is: 379,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,467.58 : 393,832.00 = 276,693.37 : x
  2. Step 2: Convert to fraction form
    287,467.58/393,832.00 = 276,693.37/x
  3. Step 3: Cross multiply
    287,467.58x = 393,832.00 × 276,693.37
  4. Step 4: Simplify right side
    287,467.58x = 108,970,701,617.53
  5. Step 5: Solve for x
    x = 108,970,701,617.53/287,467.58
  6. Step 6: Final answer
    x = 379,071.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.