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Finding the Fourth Proportional to 172,219.86, 258,334.68 and 47,560.86

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Solution

The fourth proportional to 172,219.86, 258,334.68 and 47,560.86 is: 71,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,219.86 : 258,334.68 = 47,560.86 : x
  2. Step 2: Convert to fraction form
    172,219.86/258,334.68 = 47,560.86/x
  3. Step 3: Cross multiply
    172,219.86x = 258,334.68 × 47,560.86
  4. Step 4: Simplify right side
    172,219.86x = 12,286,619,548.62
  5. Step 5: Solve for x
    x = 12,286,619,548.62/172,219.86
  6. Step 6: Final answer
    x = 71,342.64

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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.