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Finding the Fourth Proportional to 328,063.71, 449,775.30 and 322,085.00

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Solution

The fourth proportional to 328,063.71, 449,775.30 and 322,085.00 is: 441,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,063.71 : 449,775.30 = 322,085.00 : x
  2. Step 2: Convert to fraction form
    328,063.71/449,775.30 = 322,085.00/x
  3. Step 3: Cross multiply
    328,063.71x = 449,775.30 × 322,085.00
  4. Step 4: Simplify right side
    328,063.71x = 144,865,878,624.94
  5. Step 5: Solve for x
    x = 144,865,878,624.94/328,063.71
  6. Step 6: Final answer
    x = 441,578.49

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.