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Finding the Fourth Proportional to 545,840.80, 818,469.60 and 229,940.80

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Solution

The fourth proportional to 545,840.80, 818,469.60 and 229,940.80 is: 344,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,840.80 : 818,469.60 = 229,940.80 : x
  2. Step 2: Convert to fraction form
    545,840.80/818,469.60 = 229,940.80/x
  3. Step 3: Cross multiply
    545,840.80x = 818,469.60 × 229,940.80
  4. Step 4: Simplify right side
    545,840.80x = 188,199,554,599.68
  5. Step 5: Solve for x
    x = 188,199,554,599.68/545,840.80
  6. Step 6: Final answer
    x = 344,788.36

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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.