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Finding the Fourth Proportional to 363,735.50, 545,604.35 and 127,078.20

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Solution

The fourth proportional to 363,735.50, 545,604.35 and 127,078.20 is: 190,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,735.50 : 545,604.35 = 127,078.20 : x
  2. Step 2: Convert to fraction form
    363,735.50/545,604.35 = 127,078.20/x
  3. Step 3: Cross multiply
    363,735.50x = 545,604.35 × 127,078.20
  4. Step 4: Simplify right side
    363,735.50x = 69,334,418,074.78
  5. Step 5: Solve for x
    x = 69,334,418,074.78/363,735.50
  6. Step 6: Final answer
    x = 190,617.69

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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.