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Finding the Fourth Proportional to 171,999.88, 258,001.26 and 47,347.72

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Solution

The fourth proportional to 171,999.88, 258,001.26 and 47,347.72 is: 71,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,999.88 : 258,001.26 = 47,347.72 : x
  2. Step 2: Convert to fraction form
    171,999.88/258,001.26 = 47,347.72/x
  3. Step 3: Cross multiply
    171,999.88x = 258,001.26 × 47,347.72
  4. Step 4: Simplify right side
    171,999.88x = 12,215,771,418.13
  5. Step 5: Solve for x
    x = 12,215,771,418.13/171,999.88
  6. Step 6: Final answer
    x = 71,021.98

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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.