Home / 258,270.09-356,441.63-156,351.75

Finding the Fourth Proportional to 258,270.09, 356,441.63 and 156,351.75

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Solution

The fourth proportional to 258,270.09, 356,441.63 and 156,351.75 is: 215,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,270.09 : 356,441.63 = 156,351.75 : x
  2. Step 2: Convert to fraction form
    258,270.09/356,441.63 = 156,351.75/x
  3. Step 3: Cross multiply
    258,270.09x = 356,441.63 × 156,351.75
  4. Step 4: Simplify right side
    258,270.09x = 55,730,271,841.59
  5. Step 5: Solve for x
    x = 55,730,271,841.59/258,270.09
  6. Step 6: Final answer
    x = 215,782.91

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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.