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Finding the Fourth Proportional to 339,268.40, 508,902.60 and 305,442.80

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Solution

The fourth proportional to 339,268.40, 508,902.60 and 305,442.80 is: 458,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,268.40 : 508,902.60 = 305,442.80 : x
  2. Step 2: Convert to fraction form
    339,268.40/508,902.60 = 305,442.80/x
  3. Step 3: Cross multiply
    339,268.40x = 508,902.60 × 305,442.80
  4. Step 4: Simplify right side
    339,268.40x = 155,440,635,071.28
  5. Step 5: Solve for x
    x = 155,440,635,071.28/339,268.40
  6. Step 6: Final answer
    x = 458,164.20

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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.