Home / 339,723.28-509,596.44-90,405.52

Finding the Fourth Proportional to 339,723.28, 509,596.44 and 90,405.52

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Solution

The fourth proportional to 339,723.28, 509,596.44 and 90,405.52 is: 135,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,723.28 : 509,596.44 = 90,405.52 : x
  2. Step 2: Convert to fraction form
    339,723.28/509,596.44 = 90,405.52/x
  3. Step 3: Cross multiply
    339,723.28x = 509,596.44 × 90,405.52
  4. Step 4: Simplify right side
    339,723.28x = 46,070,331,148.35
  5. Step 5: Solve for x
    x = 46,070,331,148.35/339,723.28
  6. Step 6: Final answer
    x = 135,611.35

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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.