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Finding the Fourth Proportional to 321,404.39, 443,541.67 and 183,601.57

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Solution

The fourth proportional to 321,404.39, 443,541.67 and 183,601.57 is: 253,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,404.39 : 443,541.67 = 183,601.57 : x
  2. Step 2: Convert to fraction form
    321,404.39/443,541.67 = 183,601.57/x
  3. Step 3: Cross multiply
    321,404.39x = 443,541.67 × 183,601.57
  4. Step 4: Simplify right side
    321,404.39x = 81,434,943,836.71
  5. Step 5: Solve for x
    x = 81,434,943,836.71/321,404.39
  6. Step 6: Final answer
    x = 253,372.22

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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.