Home / 354,739.20-531,331.20-308,083.20

Finding the Fourth Proportional to 354,739.20, 531,331.20 and 308,083.20

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Solution

The fourth proportional to 354,739.20, 531,331.20 and 308,083.20 is: 461,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,739.20 : 531,331.20 = 308,083.20 : x
  2. Step 2: Convert to fraction form
    354,739.20/531,331.20 = 308,083.20/x
  3. Step 3: Cross multiply
    354,739.20x = 531,331.20 × 308,083.20
  4. Step 4: Simplify right side
    354,739.20x = 163,694,216,355.84
  5. Step 5: Solve for x
    x = 163,694,216,355.84/354,739.20
  6. Step 6: Final answer
    x = 461,449.47

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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.