Home / 271,078.26-406,065.16-128,491.35

Finding the Fourth Proportional to 271,078.26, 406,065.16 and 128,491.35

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Solution

The fourth proportional to 271,078.26, 406,065.16 and 128,491.35 is: 192,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,078.26 : 406,065.16 = 128,491.35 : x
  2. Step 2: Convert to fraction form
    271,078.26/406,065.16 = 128,491.35/x
  3. Step 3: Cross multiply
    271,078.26x = 406,065.16 × 128,491.35
  4. Step 4: Simplify right side
    271,078.26x = 52,175,860,596.37
  5. Step 5: Solve for x
    x = 52,175,860,596.37/271,078.26
  6. Step 6: Final answer
    x = 192,475.27

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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.