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Finding the Fourth Proportional to 550,097.89, 759,198.08 and 308,445.73

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Solution

The fourth proportional to 550,097.89, 759,198.08 and 308,445.73 is: 425,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,097.89 : 759,198.08 = 308,445.73 : x
  2. Step 2: Convert to fraction form
    550,097.89/759,198.08 = 308,445.73/x
  3. Step 3: Cross multiply
    550,097.89x = 759,198.08 × 308,445.73
  4. Step 4: Simplify right side
    550,097.89x = 234,171,406,000.20
  5. Step 5: Solve for x
    x = 234,171,406,000.20/550,097.89
  6. Step 6: Final answer
    x = 425,690.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.