Home / 258,265.21-356,404.08-145,087.96

Finding the Fourth Proportional to 258,265.21, 356,404.08 and 145,087.96

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Solution

The fourth proportional to 258,265.21, 356,404.08 and 145,087.96 is: 200,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,265.21 : 356,404.08 = 145,087.96 : x
  2. Step 2: Convert to fraction form
    258,265.21/356,404.08 = 145,087.96/x
  3. Step 3: Cross multiply
    258,265.21x = 356,404.08 × 145,087.96
  4. Step 4: Simplify right side
    258,265.21x = 51,709,940,902.88
  5. Step 5: Solve for x
    x = 51,709,940,902.88/258,265.21
  6. Step 6: Final answer
    x = 200,220.31

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1.5x scale

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.