Home / 380,933.19-525,581.45-300,109.87

Finding the Fourth Proportional to 380,933.19, 525,581.45 and 300,109.87

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Solution

The fourth proportional to 380,933.19, 525,581.45 and 300,109.87 is: 414,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,933.19 : 525,581.45 = 300,109.87 : x
  2. Step 2: Convert to fraction form
    380,933.19/525,581.45 = 300,109.87/x
  3. Step 3: Cross multiply
    380,933.19x = 525,581.45 × 300,109.87
  4. Step 4: Simplify right side
    380,933.19x = 157,732,180,633.91
  5. Step 5: Solve for x
    x = 157,732,180,633.91/380,933.19
  6. Step 6: Final answer
    x = 414,067.83

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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.