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Finding the Fourth Proportional to 336,456.40, 504,004.20 and 209,707.60

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Solution

The fourth proportional to 336,456.40, 504,004.20 and 209,707.60 is: 314,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,456.40 : 504,004.20 = 209,707.60 : x
  2. Step 2: Convert to fraction form
    336,456.40/504,004.20 = 209,707.60/x
  3. Step 3: Cross multiply
    336,456.40x = 504,004.20 × 209,707.60
  4. Step 4: Simplify right side
    336,456.40x = 105,693,511,171.92
  5. Step 5: Solve for x
    x = 105,693,511,171.92/336,456.40
  6. Step 6: Final answer
    x = 314,137.32

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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.