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Finding the Fourth Proportional to 339,394.92, 509,092.15 and 86,675.46

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Solution

The fourth proportional to 339,394.92, 509,092.15 and 86,675.46 is: 130,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,394.92 : 509,092.15 = 86,675.46 : x
  2. Step 2: Convert to fraction form
    339,394.92/509,092.15 = 86,675.46/x
  3. Step 3: Cross multiply
    339,394.92x = 509,092.15 × 86,675.46
  4. Step 4: Simplify right side
    339,394.92x = 44,125,796,283.64
  5. Step 5: Solve for x
    x = 44,125,796,283.64/339,394.92
  6. Step 6: Final answer
    x = 130,013.13

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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.