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Finding the Fourth Proportional to 339,933.48, 509,525.92 and 140,144.28

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Solution

The fourth proportional to 339,933.48, 509,525.92 and 140,144.28 is: 210,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,933.48 : 509,525.92 = 140,144.28 : x
  2. Step 2: Convert to fraction form
    339,933.48/509,525.92 = 140,144.28/x
  3. Step 3: Cross multiply
    339,933.48x = 509,525.92 × 140,144.28
  4. Step 4: Simplify right side
    339,933.48x = 71,407,143,199.74
  5. Step 5: Solve for x
    x = 71,407,143,199.74/339,933.48
  6. Step 6: Final answer
    x = 210,062.11

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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.