Home / 321,638.13-443,570.02-200,790.58

Finding the Fourth Proportional to 321,638.13, 443,570.02 and 200,790.58

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Solution

The fourth proportional to 321,638.13, 443,570.02 and 200,790.58 is: 276,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,638.13 : 443,570.02 = 200,790.58 : x
  2. Step 2: Convert to fraction form
    321,638.13/443,570.02 = 200,790.58/x
  3. Step 3: Cross multiply
    321,638.13x = 443,570.02 × 200,790.58
  4. Step 4: Simplify right side
    321,638.13x = 89,064,681,586.41
  5. Step 5: Solve for x
    x = 89,064,681,586.41/321,638.13
  6. Step 6: Final answer
    x = 276,909.59

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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.