Home / 203,213.04-280,438.50-115,996.36

Finding the Fourth Proportional to 203,213.04, 280,438.50 and 115,996.36

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Solution

The fourth proportional to 203,213.04, 280,438.50 and 115,996.36 is: 160,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,213.04 : 280,438.50 = 115,996.36 : x
  2. Step 2: Convert to fraction form
    203,213.04/280,438.50 = 115,996.36/x
  3. Step 3: Cross multiply
    203,213.04x = 280,438.50 × 115,996.36
  4. Step 4: Simplify right side
    203,213.04x = 32,529,845,203.86
  5. Step 5: Solve for x
    x = 32,529,845,203.86/203,213.04
  6. Step 6: Final answer
    x = 160,077.55

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1.5x scale

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.