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Finding the Fourth Proportional to 336,453.40, 503,999.70 and 209,704.60

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Solution

The fourth proportional to 336,453.40, 503,999.70 and 209,704.60 is: 314,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,453.40 : 503,999.70 = 209,704.60 : x
  2. Step 2: Convert to fraction form
    336,453.40/503,999.70 = 209,704.60/x
  3. Step 3: Cross multiply
    336,453.40x = 503,999.70 × 209,704.60
  4. Step 4: Simplify right side
    336,453.40x = 105,691,055,488.62
  5. Step 5: Solve for x
    x = 105,691,055,488.62/336,453.40
  6. Step 6: Final answer
    x = 314,132.82

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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.