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Finding the Fourth Proportional to 321,352.62, 443,481.13 and 183,543.57

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Solution

The fourth proportional to 321,352.62, 443,481.13 and 183,543.57 is: 253,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,352.62 : 443,481.13 = 183,543.57 : x
  2. Step 2: Convert to fraction form
    321,352.62/443,481.13 = 183,543.57/x
  3. Step 3: Cross multiply
    321,352.62x = 443,481.13 × 183,543.57
  4. Step 4: Simplify right side
    321,352.62x = 81,398,109,024.83
  5. Step 5: Solve for x
    x = 81,398,109,024.83/321,352.62
  6. Step 6: Final answer
    x = 253,298.42

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1.5x scale

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.