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Finding the Fourth Proportional to 168,658.40, 252,987.60 and 43,999.40

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Solution

The fourth proportional to 168,658.40, 252,987.60 and 43,999.40 is: 65,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,658.40 : 252,987.60 = 43,999.40 : x
  2. Step 2: Convert to fraction form
    168,658.40/252,987.60 = 43,999.40/x
  3. Step 3: Cross multiply
    168,658.40x = 252,987.60 × 43,999.40
  4. Step 4: Simplify right side
    168,658.40x = 11,131,302,607.44
  5. Step 5: Solve for x
    x = 11,131,302,607.44/168,658.40
  6. Step 6: Final answer
    x = 65,999.10

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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.