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Finding the Fourth Proportional to 439,409.60, 659,114.40 and 203,213.60

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Solution

The fourth proportional to 439,409.60, 659,114.40 and 203,213.60 is: 304,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,409.60 : 659,114.40 = 203,213.60 : x
  2. Step 2: Convert to fraction form
    439,409.60/659,114.40 = 203,213.60/x
  3. Step 3: Cross multiply
    439,409.60x = 659,114.40 × 203,213.60
  4. Step 4: Simplify right side
    439,409.60x = 133,941,010,035.84
  5. Step 5: Solve for x
    x = 133,941,010,035.84/439,409.60
  6. Step 6: Final answer
    x = 304,820.40

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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.