Home / 380,610.11-525,243.96-215,038.82

Finding the Fourth Proportional to 380,610.11, 525,243.96 and 215,038.82

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Solution

The fourth proportional to 380,610.11, 525,243.96 and 215,038.82 is: 296,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,610.11 : 525,243.96 = 215,038.82 : x
  2. Step 2: Convert to fraction form
    380,610.11/525,243.96 = 215,038.82/x
  3. Step 3: Cross multiply
    380,610.11x = 525,243.96 × 215,038.82
  4. Step 4: Simplify right side
    380,610.11x = 112,947,842,683.64
  5. Step 5: Solve for x
    x = 112,947,842,683.64/380,610.11
  6. Step 6: Final answer
    x = 296,754.71

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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.