Home / 380,843.05-525,569.98-208,749.54

Finding the Fourth Proportional to 380,843.05, 525,569.98 and 208,749.54

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Solution

The fourth proportional to 380,843.05, 525,569.98 and 208,749.54 is: 288,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,843.05 : 525,569.98 = 208,749.54 : x
  2. Step 2: Convert to fraction form
    380,843.05/525,569.98 = 208,749.54/x
  3. Step 3: Cross multiply
    380,843.05x = 525,569.98 × 208,749.54
  4. Step 4: Simplify right side
    380,843.05x = 109,712,491,562.81
  5. Step 5: Solve for x
    x = 109,712,491,562.81/380,843.05
  6. Step 6: Final answer
    x = 288,077.97

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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.