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Finding the Fourth Proportional to 339,446.24, 509,169.30 and 86,727.23

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Solution

The fourth proportional to 339,446.24, 509,169.30 and 86,727.23 is: 130,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,446.24 : 509,169.30 = 86,727.23 : x
  2. Step 2: Convert to fraction form
    339,446.24/509,169.30 = 86,727.23/x
  3. Step 3: Cross multiply
    339,446.24x = 509,169.30 × 86,727.23
  4. Step 4: Simplify right side
    339,446.24x = 44,158,842,990.04
  5. Step 5: Solve for x
    x = 44,158,842,990.04/339,446.24
  6. Step 6: Final answer
    x = 130,090.83

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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.