Home / 354,935.20-531,625.20-308,279.20

Finding the Fourth Proportional to 354,935.20, 531,625.20 and 308,279.20

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Solution

The fourth proportional to 354,935.20, 531,625.20 and 308,279.20 is: 461,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,935.20 : 531,625.20 = 308,279.20 : x
  2. Step 2: Convert to fraction form
    354,935.20/531,625.20 = 308,279.20/x
  3. Step 3: Cross multiply
    354,935.20x = 531,625.20 × 308,279.20
  4. Step 4: Simplify right side
    354,935.20x = 163,888,991,355.84
  5. Step 5: Solve for x
    x = 163,888,991,355.84/354,935.20
  6. Step 6: Final answer
    x = 461,743.42

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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.