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Finding the Fourth Proportional to 439,636.60, 659,454.90 and 203,440.60

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Solution

The fourth proportional to 439,636.60, 659,454.90 and 203,440.60 is: 305,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,636.60 : 659,454.90 = 203,440.60 : x
  2. Step 2: Convert to fraction form
    439,636.60/659,454.90 = 203,440.60/x
  3. Step 3: Cross multiply
    439,636.60x = 659,454.90 × 203,440.60
  4. Step 4: Simplify right side
    439,636.60x = 134,159,900,528.94
  5. Step 5: Solve for x
    x = 134,159,900,528.94/439,636.60
  6. Step 6: Final answer
    x = 305,160.90

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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.