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Finding the Fourth Proportional to 479,212.68, 661,291.25 and 275,119.96

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Solution

The fourth proportional to 479,212.68, 661,291.25 and 275,119.96 is: 379,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,212.68 : 661,291.25 = 275,119.96 : x
  2. Step 2: Convert to fraction form
    479,212.68/661,291.25 = 275,119.96/x
  3. Step 3: Cross multiply
    479,212.68x = 661,291.25 × 275,119.96
  4. Step 4: Simplify right side
    479,212.68x = 181,934,422,248.35
  5. Step 5: Solve for x
    x = 181,934,422,248.35/479,212.68
  6. Step 6: Final answer
    x = 379,652.77

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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.