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Finding the Fourth Proportional to 339,271.96, 511,290.68 and 305,580.20

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Solution

The fourth proportional to 339,271.96, 511,290.68 and 305,580.20 is: 460,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,271.96 : 511,290.68 = 305,580.20 : x
  2. Step 2: Convert to fraction form
    339,271.96/511,290.68 = 305,580.20/x
  3. Step 3: Cross multiply
    339,271.96x = 511,290.68 × 305,580.20
  4. Step 4: Simplify right side
    339,271.96x = 156,240,308,252.54
  5. Step 5: Solve for x
    x = 156,240,308,252.54/339,271.96
  6. Step 6: Final answer
    x = 460,516.42

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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.