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Finding the Fourth Proportional to 339,952.72, 509,987.40 and 182,138.80

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Solution

The fourth proportional to 339,952.72, 509,987.40 and 182,138.80 is: 273,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,952.72 : 509,987.40 = 182,138.80 : x
  2. Step 2: Convert to fraction form
    339,952.72/509,987.40 = 182,138.80/x
  3. Step 3: Cross multiply
    339,952.72x = 509,987.40 × 182,138.80
  4. Step 4: Simplify right side
    339,952.72x = 92,888,493,051.12
  5. Step 5: Solve for x
    x = 92,888,493,051.12/339,952.72
  6. Step 6: Final answer
    x = 273,239.45

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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.