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Finding the Fourth Proportional to 171,729.40, 257,591.40 and 47,070.40

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Solution

The fourth proportional to 171,729.40, 257,591.40 and 47,070.40 is: 70,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,729.40 : 257,591.40 = 47,070.40 : x
  2. Step 2: Convert to fraction form
    171,729.40/257,591.40 = 47,070.40/x
  3. Step 3: Cross multiply
    171,729.40x = 257,591.40 × 47,070.40
  4. Step 4: Simplify right side
    171,729.40x = 12,124,930,234.56
  5. Step 5: Solve for x
    x = 12,124,930,234.56/171,729.40
  6. Step 6: Final answer
    x = 70,604.86

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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.