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Finding the Fourth Proportional to 339,590.06, 509,402.52 and 86,872.73

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Solution

The fourth proportional to 339,590.06, 509,402.52 and 86,872.73 is: 130,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,590.06 : 509,402.52 = 86,872.73 : x
  2. Step 2: Convert to fraction form
    339,590.06/509,402.52 = 86,872.73/x
  3. Step 3: Cross multiply
    339,590.06x = 509,402.52 × 86,872.73
  4. Step 4: Simplify right side
    339,590.06x = 44,253,185,034.27
  5. Step 5: Solve for x
    x = 44,253,185,034.27/339,590.06
  6. Step 6: Final answer
    x = 130,313.55

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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.