Home / 438,914.80-658,372.20-158,441.20

Finding the Fourth Proportional to 438,914.80, 658,372.20 and 158,441.20

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Solution

The fourth proportional to 438,914.80, 658,372.20 and 158,441.20 is: 237,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,914.80 : 658,372.20 = 158,441.20 : x
  2. Step 2: Convert to fraction form
    438,914.80/658,372.20 = 158,441.20/x
  3. Step 3: Cross multiply
    438,914.80x = 658,372.20 × 158,441.20
  4. Step 4: Simplify right side
    438,914.80x = 104,313,281,414.64
  5. Step 5: Solve for x
    x = 104,313,281,414.64/438,914.80
  6. Step 6: Final answer
    x = 237,661.80

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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.