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Finding the Fourth Proportional to 170,235.60, 255,499.20 and 75,611.40

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Solution

The fourth proportional to 170,235.60, 255,499.20 and 75,611.40 is: 113,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,235.60 : 255,499.20 = 75,611.40 : x
  2. Step 2: Convert to fraction form
    170,235.60/255,499.20 = 75,611.40/x
  3. Step 3: Cross multiply
    170,235.60x = 255,499.20 × 75,611.40
  4. Step 4: Simplify right side
    170,235.60x = 19,318,652,210.88
  5. Step 5: Solve for x
    x = 19,318,652,210.88/170,235.60
  6. Step 6: Final answer
    x = 113,481.86

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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.