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Finding the Fourth Proportional to 545,512.12, 818,379.96 and 229,969.60

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Solution

The fourth proportional to 545,512.12, 818,379.96 and 229,969.60 is: 345,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,512.12 : 818,379.96 = 229,969.60 : x
  2. Step 2: Convert to fraction form
    545,512.12/818,379.96 = 229,969.60/x
  3. Step 3: Cross multiply
    545,512.12x = 818,379.96 × 229,969.60
  4. Step 4: Simplify right side
    545,512.12x = 188,202,512,049.22
  5. Step 5: Solve for x
    x = 188,202,512,049.22/545,512.12
  6. Step 6: Final answer
    x = 345,001.52

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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.