Home / 258,520.20-356,757.86-145,342.95

Finding the Fourth Proportional to 258,520.20, 356,757.86 and 145,342.95

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Solution

The fourth proportional to 258,520.20, 356,757.86 and 145,342.95 is: 200,573.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,520.20 : 356,757.86 = 145,342.95 : x
  2. Step 2: Convert to fraction form
    258,520.20/356,757.86 = 145,342.95/x
  3. Step 3: Cross multiply
    258,520.20x = 356,757.86 × 145,342.95
  4. Step 4: Simplify right side
    258,520.20x = 51,852,239,808.09
  5. Step 5: Solve for x
    x = 51,852,239,808.09/258,520.20
  6. Step 6: Final answer
    x = 200,573.26

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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.