Home / 271,638.18-407,535.03-131,475.78

Finding the Fourth Proportional to 271,638.18, 407,535.03 and 131,475.78

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Solution

The fourth proportional to 271,638.18, 407,535.03 and 131,475.78 is: 197,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,638.18 : 407,535.03 = 131,475.78 : x
  2. Step 2: Convert to fraction form
    271,638.18/407,535.03 = 131,475.78/x
  3. Step 3: Cross multiply
    271,638.18x = 407,535.03 × 131,475.78
  4. Step 4: Simplify right side
    271,638.18x = 53,580,985,946.57
  5. Step 5: Solve for x
    x = 53,580,985,946.57/271,638.18
  6. Step 6: Final answer
    x = 197,251.31

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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.