Home / 271,709.28-407,121.20-166,307.04

Finding the Fourth Proportional to 271,709.28, 407,121.20 and 166,307.04

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Solution

The fourth proportional to 271,709.28, 407,121.20 and 166,307.04 is: 249,189.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,709.28 : 407,121.20 = 166,307.04 : x
  2. Step 2: Convert to fraction form
    271,709.28/407,121.20 = 166,307.04/x
  3. Step 3: Cross multiply
    271,709.28x = 407,121.20 × 166,307.04
  4. Step 4: Simplify right side
    271,709.28x = 67,707,121,693.25
  5. Step 5: Solve for x
    x = 67,707,121,693.25/271,709.28
  6. Step 6: Final answer
    x = 249,189.58

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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.