Home / 321,526.12-443,723.78-178,283.12

Finding the Fourth Proportional to 321,526.12, 443,723.78 and 178,283.12

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Solution

The fourth proportional to 321,526.12, 443,723.78 and 178,283.12 is: 246,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,526.12 : 443,723.78 = 178,283.12 : x
  2. Step 2: Convert to fraction form
    321,526.12/443,723.78 = 178,283.12/x
  3. Step 3: Cross multiply
    321,526.12x = 443,723.78 × 178,283.12
  4. Step 4: Simplify right side
    321,526.12x = 79,108,459,916.59
  5. Step 5: Solve for x
    x = 79,108,459,916.59/321,526.12
  6. Step 6: Final answer
    x = 246,040.54

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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.