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Finding the Fourth Proportional to 339,205.60, 508,808.40 and 306,546.40

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Solution

The fourth proportional to 339,205.60, 508,808.40 and 306,546.40 is: 459,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,205.60 : 508,808.40 = 306,546.40 : x
  2. Step 2: Convert to fraction form
    339,205.60/508,808.40 = 306,546.40/x
  3. Step 3: Cross multiply
    339,205.60x = 508,808.40 × 306,546.40
  4. Step 4: Simplify right side
    339,205.60x = 155,973,383,309.76
  5. Step 5: Solve for x
    x = 155,973,383,309.76/339,205.60
  6. Step 6: Final answer
    x = 459,819.60

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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.