Home / 215,213.40-322,820.10-131,232.60

Finding the Fourth Proportional to 215,213.40, 322,820.10 and 131,232.60

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Solution

The fourth proportional to 215,213.40, 322,820.10 and 131,232.60 is: 196,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,213.40 : 322,820.10 = 131,232.60 : x
  2. Step 2: Convert to fraction form
    215,213.40/322,820.10 = 131,232.60/x
  3. Step 3: Cross multiply
    215,213.40x = 322,820.10 × 131,232.60
  4. Step 4: Simplify right side
    215,213.40x = 42,364,521,055.26
  5. Step 5: Solve for x
    x = 42,364,521,055.26/215,213.40
  6. Step 6: Final answer
    x = 196,848.90

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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.