Home / 271,905.42-407,899.62-138,713.04

Finding the Fourth Proportional to 271,905.42, 407,899.62 and 138,713.04

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Solution

The fourth proportional to 271,905.42, 407,899.62 and 138,713.04 is: 208,090.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,905.42 : 407,899.62 = 138,713.04 : x
  2. Step 2: Convert to fraction form
    271,905.42/407,899.62 = 138,713.04/x
  3. Step 3: Cross multiply
    271,905.42x = 407,899.62 × 138,713.04
  4. Step 4: Simplify right side
    271,905.42x = 56,580,996,305.04
  5. Step 5: Solve for x
    x = 56,580,996,305.04/271,905.42
  6. Step 6: Final answer
    x = 208,090.73

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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.