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Finding the Fourth Proportional to 365,739.60, 548,609.40 and 129,080.40

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Solution

The fourth proportional to 365,739.60, 548,609.40 and 129,080.40 is: 193,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,739.60 : 548,609.40 = 129,080.40 : x
  2. Step 2: Convert to fraction form
    365,739.60/548,609.40 = 129,080.40/x
  3. Step 3: Cross multiply
    365,739.60x = 548,609.40 × 129,080.40
  4. Step 4: Simplify right side
    365,739.60x = 70,814,720,795.76
  5. Step 5: Solve for x
    x = 70,814,720,795.76/365,739.60
  6. Step 6: Final answer
    x = 193,620.60

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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.