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Finding the Fourth Proportional to 180,311.12, 270,505.30 and 53,961.12

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Solution

The fourth proportional to 180,311.12, 270,505.30 and 53,961.12 is: 80,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,311.12 : 270,505.30 = 53,961.12 : x
  2. Step 2: Convert to fraction form
    180,311.12/270,505.30 = 53,961.12/x
  3. Step 3: Cross multiply
    180,311.12x = 270,505.30 × 53,961.12
  4. Step 4: Simplify right side
    180,311.12x = 14,596,768,953.94
  5. Step 5: Solve for x
    x = 14,596,768,953.94/180,311.12
  6. Step 6: Final answer
    x = 80,953.24

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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.