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Finding the Fourth Proportional to 334,138.80, 501,208.20 and 120,906.30

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Solution

The fourth proportional to 334,138.80, 501,208.20 and 120,906.30 is: 181,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,138.80 : 501,208.20 = 120,906.30 : x
  2. Step 2: Convert to fraction form
    334,138.80/501,208.20 = 120,906.30/x
  3. Step 3: Cross multiply
    334,138.80x = 501,208.20 × 120,906.30
  4. Step 4: Simplify right side
    334,138.80x = 60,599,228,991.66
  5. Step 5: Solve for x
    x = 60,599,228,991.66/334,138.80
  6. Step 6: Final answer
    x = 181,359.45

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1.5x scale

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.