Home / 220,985.60-331,643.48-149,739.30

Finding the Fourth Proportional to 220,985.60, 331,643.48 and 149,739.30

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Solution

The fourth proportional to 220,985.60, 331,643.48 and 149,739.30 is: 224,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,985.60 : 331,643.48 = 149,739.30 : x
  2. Step 2: Convert to fraction form
    220,985.60/331,643.48 = 149,739.30/x
  3. Step 3: Cross multiply
    220,985.60x = 331,643.48 × 149,739.30
  4. Step 4: Simplify right side
    220,985.60x = 49,660,061,796.07
  5. Step 5: Solve for x
    x = 49,660,061,796.07/220,985.60
  6. Step 6: Final answer
    x = 224,720.81

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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.