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Finding the Fourth Proportional to 339,611.60, 508,207.80 and 295,720.40

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Solution

The fourth proportional to 339,611.60, 508,207.80 and 295,720.40 is: 442,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,611.60 : 508,207.80 = 295,720.40 : x
  2. Step 2: Convert to fraction form
    339,611.60/508,207.80 = 295,720.40/x
  3. Step 3: Cross multiply
    339,611.60x = 508,207.80 × 295,720.40
  4. Step 4: Simplify right side
    339,611.60x = 150,287,413,899.12
  5. Step 5: Solve for x
    x = 150,287,413,899.12/339,611.60
  6. Step 6: Final answer
    x = 442,527.33

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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.