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Finding the Fourth Proportional to 339,452.68, 509,178.94 and 86,733.64

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Solution

The fourth proportional to 339,452.68, 509,178.94 and 86,733.64 is: 130,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,452.68 : 509,178.94 = 86,733.64 : x
  2. Step 2: Convert to fraction form
    339,452.68/509,178.94 = 86,733.64/x
  3. Step 3: Cross multiply
    339,452.68x = 509,178.94 × 86,733.64
  4. Step 4: Simplify right side
    339,452.68x = 44,162,942,877.54
  5. Step 5: Solve for x
    x = 44,162,942,877.54/339,452.68
  6. Step 6: Final answer
    x = 130,100.44

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1.5x scale

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.