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Finding the Fourth Proportional to 171,679.60, 257,515.35 and 47,020.60

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Solution

The fourth proportional to 171,679.60, 257,515.35 and 47,020.60 is: 70,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,679.60 : 257,515.35 = 47,020.60 : x
  2. Step 2: Convert to fraction form
    171,679.60/257,515.35 = 47,020.60/x
  3. Step 3: Cross multiply
    171,679.60x = 257,515.35 × 47,020.60
  4. Step 4: Simplify right side
    171,679.60x = 12,108,526,266.21
  5. Step 5: Solve for x
    x = 12,108,526,266.21/171,679.60
  6. Step 6: Final answer
    x = 70,529.79

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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.