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Finding the Fourth Proportional to 271,222.40, 406,979.40 and 113,466.80

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Solution

The fourth proportional to 271,222.40, 406,979.40 and 113,466.80 is: 170,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,222.40 : 406,979.40 = 113,466.80 : x
  2. Step 2: Convert to fraction form
    271,222.40/406,979.40 = 113,466.80/x
  3. Step 3: Cross multiply
    271,222.40x = 406,979.40 × 113,466.80
  4. Step 4: Simplify right side
    271,222.40x = 46,178,650,183.92
  5. Step 5: Solve for x
    x = 46,178,650,183.92/271,222.40
  6. Step 6: Final answer
    x = 170,261.20

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1.5x scale

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.