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Finding the Fourth Proportional to 259,950.84, 389,940.08 and 82,472.04

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Solution

The fourth proportional to 259,950.84, 389,940.08 and 82,472.04 is: 123,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,950.84 : 389,940.08 = 82,472.04 : x
  2. Step 2: Convert to fraction form
    259,950.84/389,940.08 = 82,472.04/x
  3. Step 3: Cross multiply
    259,950.84x = 389,940.08 × 82,472.04
  4. Step 4: Simplify right side
    259,950.84x = 32,159,153,875.36
  5. Step 5: Solve for x
    x = 32,159,153,875.36/259,950.84
  6. Step 6: Final answer
    x = 123,712.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.