Home / 330,434.20-496,040.10-328,101.40

Finding the Fourth Proportional to 330,434.20, 496,040.10 and 328,101.40

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Solution

The fourth proportional to 330,434.20, 496,040.10 and 328,101.40 is: 492,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,434.20 : 496,040.10 = 328,101.40 : x
  2. Step 2: Convert to fraction form
    330,434.20/496,040.10 = 328,101.40/x
  3. Step 3: Cross multiply
    330,434.20x = 496,040.10 × 328,101.40
  4. Step 4: Simplify right side
    330,434.20x = 162,751,451,266.14
  5. Step 5: Solve for x
    x = 162,751,451,266.14/330,434.20
  6. Step 6: Final answer
    x = 492,538.16

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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.