Home / 271,982.15-407,972.55-72,302.45

Finding the Fourth Proportional to 271,982.15, 407,972.55 and 72,302.45

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Solution

The fourth proportional to 271,982.15, 407,972.55 and 72,302.45 is: 108,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,982.15 : 407,972.55 = 72,302.45 : x
  2. Step 2: Convert to fraction form
    271,982.15/407,972.55 = 72,302.45/x
  3. Step 3: Cross multiply
    271,982.15x = 407,972.55 × 72,302.45
  4. Step 4: Simplify right side
    271,982.15x = 29,497,413,869.74
  5. Step 5: Solve for x
    x = 29,497,413,869.74/271,982.15
  6. Step 6: Final answer
    x = 108,453.49

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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.