Home / 348,591.24-521,567.34-206,512.78

Finding the Fourth Proportional to 348,591.24, 521,567.34 and 206,512.78

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Solution

The fourth proportional to 348,591.24, 521,567.34 and 206,512.78 is: 308,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,591.24 : 521,567.34 = 206,512.78 : x
  2. Step 2: Convert to fraction form
    348,591.24/521,567.34 = 206,512.78/x
  3. Step 3: Cross multiply
    348,591.24x = 521,567.34 × 206,512.78
  4. Step 4: Simplify right side
    348,591.24x = 107,710,321,340.61
  5. Step 5: Solve for x
    x = 107,710,321,340.61/348,591.24
  6. Step 6: Final answer
    x = 308,987.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.