Home / 305,546.25-458,331.80-145,539.93

Finding the Fourth Proportional to 305,546.25, 458,331.80 and 145,539.93

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Solution

The fourth proportional to 305,546.25, 458,331.80 and 145,539.93 is: 218,315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,546.25 : 458,331.80 = 145,539.93 : x
  2. Step 2: Convert to fraction form
    305,546.25/458,331.80 = 145,539.93/x
  3. Step 3: Cross multiply
    305,546.25x = 458,331.80 × 145,539.93
  4. Step 4: Simplify right side
    305,546.25x = 66,705,577,361.07
  5. Step 5: Solve for x
    x = 66,705,577,361.07/305,546.25
  6. Step 6: Final answer
    x = 218,315.81

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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.