Home / 399,165.98-598,844.64-132,928.80

Finding the Fourth Proportional to 399,165.98, 598,844.64 and 132,928.80

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Solution

The fourth proportional to 399,165.98, 598,844.64 and 132,928.80 is: 199,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,165.98 : 598,844.64 = 132,928.80 : x
  2. Step 2: Convert to fraction form
    399,165.98/598,844.64 = 132,928.80/x
  3. Step 3: Cross multiply
    399,165.98x = 598,844.64 × 132,928.80
  4. Step 4: Simplify right side
    399,165.98x = 79,603,697,634.45
  5. Step 5: Solve for x
    x = 79,603,697,634.45/399,165.98
  6. Step 6: Final answer
    x = 199,425.06

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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.