Home / 330,127.71-457,907.00-321,377.61

Finding the Fourth Proportional to 330,127.71, 457,907.00 and 321,377.61

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Solution

The fourth proportional to 330,127.71, 457,907.00 and 321,377.61 is: 445,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,127.71 : 457,907.00 = 321,377.61 : x
  2. Step 2: Convert to fraction form
    330,127.71/457,907.00 = 321,377.61/x
  3. Step 3: Cross multiply
    330,127.71x = 457,907.00 × 321,377.61
  4. Step 4: Simplify right side
    330,127.71x = 147,161,055,655.38
  5. Step 5: Solve for x
    x = 147,161,055,655.38/330,127.71
  6. Step 6: Final answer
    x = 445,770.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.