Home / 368,932.80-553,399.20-322,276.80

Finding the Fourth Proportional to 368,932.80, 553,399.20 and 322,276.80

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Solution

The fourth proportional to 368,932.80, 553,399.20 and 322,276.80 is: 483,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,932.80 : 553,399.20 = 322,276.80 : x
  2. Step 2: Convert to fraction form
    368,932.80/553,399.20 = 322,276.80/x
  3. Step 3: Cross multiply
    368,932.80x = 553,399.20 × 322,276.80
  4. Step 4: Simplify right side
    368,932.80x = 178,347,723,298.56
  5. Step 5: Solve for x
    x = 178,347,723,298.56/368,932.80
  6. Step 6: Final answer
    x = 483,415.20

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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.