Home / 271,136.10-406,704.15-138,275.85

Finding the Fourth Proportional to 271,136.10, 406,704.15 and 138,275.85

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Solution

The fourth proportional to 271,136.10, 406,704.15 and 138,275.85 is: 207,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,136.10 : 406,704.15 = 138,275.85 : x
  2. Step 2: Convert to fraction form
    271,136.10/406,704.15 = 138,275.85/x
  3. Step 3: Cross multiply
    271,136.10x = 406,704.15 × 138,275.85
  4. Step 4: Simplify right side
    271,136.10x = 56,237,362,039.78
  5. Step 5: Solve for x
    x = 56,237,362,039.78/271,136.10
  6. Step 6: Final answer
    x = 207,413.78

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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.