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Finding the Fourth Proportional to 339,294.60, 508,941.90 and 313,633.80

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Solution

The fourth proportional to 339,294.60, 508,941.90 and 313,633.80 is: 470,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,294.60 : 508,941.90 = 313,633.80 : x
  2. Step 2: Convert to fraction form
    339,294.60/508,941.90 = 313,633.80/x
  3. Step 3: Cross multiply
    339,294.60x = 508,941.90 × 313,633.80
  4. Step 4: Simplify right side
    339,294.60x = 159,621,382,076.22
  5. Step 5: Solve for x
    x = 159,621,382,076.22/339,294.60
  6. Step 6: Final answer
    x = 470,450.70

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Similar ratio
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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.