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Finding the Fourth Proportional to 271,832.36, 407,748.80 and 103,313.07

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Solution

The fourth proportional to 271,832.36, 407,748.80 and 103,313.07 is: 154,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,832.36 : 407,748.80 = 103,313.07 : x
  2. Step 2: Convert to fraction form
    271,832.36/407,748.80 = 103,313.07/x
  3. Step 3: Cross multiply
    271,832.36x = 407,748.80 × 103,313.07
  4. Step 4: Simplify right side
    271,832.36x = 42,125,780,575.10
  5. Step 5: Solve for x
    x = 42,125,780,575.10/271,832.36
  6. Step 6: Final answer
    x = 154,969.71

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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.