Home / 321,631.63-443,561.12-200,784.08

Finding the Fourth Proportional to 321,631.63, 443,561.12 and 200,784.08

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Solution

The fourth proportional to 321,631.63, 443,561.12 and 200,784.08 is: 276,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,631.63 : 443,561.12 = 200,784.08 : x
  2. Step 2: Convert to fraction form
    321,631.63/443,561.12 = 200,784.08/x
  3. Step 3: Cross multiply
    321,631.63x = 443,561.12 × 200,784.08
  4. Step 4: Simplify right side
    321,631.63x = 89,060,011,402.97
  5. Step 5: Solve for x
    x = 89,060,011,402.97/321,631.63
  6. Step 6: Final answer
    x = 276,900.66

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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.