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Finding the Fourth Proportional to 275,119.98, 379,504.35 and 172,983.59

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Solution

The fourth proportional to 275,119.98, 379,504.35 and 172,983.59 is: 238,615.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,119.98 : 379,504.35 = 172,983.59 : x
  2. Step 2: Convert to fraction form
    275,119.98/379,504.35 = 172,983.59/x
  3. Step 3: Cross multiply
    275,119.98x = 379,504.35 × 172,983.59
  4. Step 4: Simplify right side
    275,119.98x = 65,648,024,883.62
  5. Step 5: Solve for x
    x = 65,648,024,883.62/275,119.98
  6. Step 6: Final answer
    x = 238,615.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.