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Finding the Fourth Proportional to 275,357.18, 412,869.60 and 123,526.58

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Solution

The fourth proportional to 275,357.18, 412,869.60 and 123,526.58 is: 185,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,357.18 : 412,869.60 = 123,526.58 : x
  2. Step 2: Convert to fraction form
    275,357.18/412,869.60 = 123,526.58/x
  3. Step 3: Cross multiply
    275,357.18x = 412,869.60 × 123,526.58
  4. Step 4: Simplify right side
    275,357.18x = 51,000,369,673.97
  5. Step 5: Solve for x
    x = 51,000,369,673.97/275,357.18
  6. Step 6: Final answer
    x = 185,215.33

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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.