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Finding the Fourth Proportional to 339,504.28, 511,287.52 and 309,237.57

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Solution

The fourth proportional to 339,504.28, 511,287.52 and 309,237.57 is: 465,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,504.28 : 511,287.52 = 309,237.57 : x
  2. Step 2: Convert to fraction form
    339,504.28/511,287.52 = 309,237.57/x
  3. Step 3: Cross multiply
    339,504.28x = 511,287.52 × 309,237.57
  4. Step 4: Simplify right side
    339,504.28x = 158,109,310,256.13
  5. Step 5: Solve for x
    x = 158,109,310,256.13/339,504.28
  6. Step 6: Final answer
    x = 465,706.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.