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Finding the Fourth Proportional to 339,344.40, 509,000.40 and 114,682.80

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Solution

The fourth proportional to 339,344.40, 509,000.40 and 114,682.80 is: 172,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,344.40 : 509,000.40 = 114,682.80 : x
  2. Step 2: Convert to fraction form
    339,344.40/509,000.40 = 114,682.80/x
  3. Step 3: Cross multiply
    339,344.40x = 509,000.40 × 114,682.80
  4. Step 4: Simplify right side
    339,344.40x = 58,373,591,073.12
  5. Step 5: Solve for x
    x = 58,373,591,073.12/339,344.40
  6. Step 6: Final answer
    x = 172,018.73

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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.