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Finding the Fourth Proportional to 321,070.72, 443,127.36 and 183,249.76

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Solution

The fourth proportional to 321,070.72, 443,127.36 and 183,249.76 is: 252,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,070.72 : 443,127.36 = 183,249.76 : x
  2. Step 2: Convert to fraction form
    321,070.72/443,127.36 = 183,249.76/x
  3. Step 3: Cross multiply
    321,070.72x = 443,127.36 × 183,249.76
  4. Step 4: Simplify right side
    321,070.72x = 81,202,982,369.43
  5. Step 5: Solve for x
    x = 81,202,982,369.43/321,070.72
  6. Step 6: Final answer
    x = 252,913.07

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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.