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Finding the Fourth Proportional to 275,784.83, 380,473.61 and 159,476.79

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Solution

The fourth proportional to 275,784.83, 380,473.61 and 159,476.79 is: 220,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,784.83 : 380,473.61 = 159,476.79 : x
  2. Step 2: Convert to fraction form
    275,784.83/380,473.61 = 159,476.79/x
  3. Step 3: Cross multiply
    275,784.83x = 380,473.61 × 159,476.79
  4. Step 4: Simplify right side
    275,784.83x = 60,676,709,205.13
  5. Step 5: Solve for x
    x = 60,676,709,205.13/275,784.83
  6. Step 6: Final answer
    x = 220,014.68

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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.