Home / 381,026.23-525,811.85-219,877.82

Finding the Fourth Proportional to 381,026.23, 525,811.85 and 219,877.82

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Solution

The fourth proportional to 381,026.23, 525,811.85 and 219,877.82 is: 303,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,026.23 : 525,811.85 = 219,877.82 : x
  2. Step 2: Convert to fraction form
    381,026.23/525,811.85 = 219,877.82/x
  3. Step 3: Cross multiply
    381,026.23x = 525,811.85 × 219,877.82
  4. Step 4: Simplify right side
    381,026.23x = 115,614,362,134.02
  5. Step 5: Solve for x
    x = 115,614,362,134.02/381,026.23
  6. Step 6: Final answer
    x = 303,428.88

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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.