Home / 321,312.35-443,426.00-178,072.41

Finding the Fourth Proportional to 321,312.35, 443,426.00 and 178,072.41

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Solution

The fourth proportional to 321,312.35, 443,426.00 and 178,072.41 is: 245,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,312.35 : 443,426.00 = 178,072.41 : x
  2. Step 2: Convert to fraction form
    321,312.35/443,426.00 = 178,072.41/x
  3. Step 3: Cross multiply
    321,312.35x = 443,426.00 × 178,072.41
  4. Step 4: Simplify right side
    321,312.35x = 78,961,934,754.87
  5. Step 5: Solve for x
    x = 78,961,934,754.87/321,312.35
  6. Step 6: Final answer
    x = 245,748.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.