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Finding the Fourth Proportional to 168,239, 252,358.50 and 43,580

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Solution

The fourth proportional to 168,239, 252,358.50 and 43,580 is: 65,370

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,239 : 252,358.50 = 43,580 : x
  2. Step 2: Convert to fraction form
    168,239/252,358.50 = 43,580/x
  3. Step 3: Cross multiply
    168,239x = 252,358.50 × 43,580
  4. Step 4: Simplify right side
    168,239x = 10,997,783,430
  5. Step 5: Solve for x
    x = 10,997,783,430/168,239
  6. Step 6: Final answer
    x = 65,370

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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.