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Finding the Fourth Proportional to 339,896.20, 509,990.10 and 173,684.20

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Solution

The fourth proportional to 339,896.20, 509,990.10 and 173,684.20 is: 260,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,896.20 : 509,990.10 = 173,684.20 : x
  2. Step 2: Convert to fraction form
    339,896.20/509,990.10 = 173,684.20/x
  3. Step 3: Cross multiply
    339,896.20x = 509,990.10 × 173,684.20
  4. Step 4: Simplify right side
    339,896.20x = 88,577,222,526.42
  5. Step 5: Solve for x
    x = 88,577,222,526.42/339,896.20
  6. Step 6: Final answer
    x = 260,600.80

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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.