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Finding the Fourth Proportional to 545,310.60, 818,081.10 and 166,200.20

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Solution

The fourth proportional to 545,310.60, 818,081.10 and 166,200.20 is: 249,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,310.60 : 818,081.10 = 166,200.20 : x
  2. Step 2: Convert to fraction form
    545,310.60/818,081.10 = 166,200.20/x
  3. Step 3: Cross multiply
    545,310.60x = 818,081.10 × 166,200.20
  4. Step 4: Simplify right side
    545,310.60x = 135,965,242,436.22
  5. Step 5: Solve for x
    x = 135,965,242,436.22/545,310.60
  6. Step 6: Final answer
    x = 249,335.41

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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.