Home / 395,127.30-545,216.96-239,997.84

Finding the Fourth Proportional to 395,127.30, 545,216.96 and 239,997.84

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Solution

The fourth proportional to 395,127.30, 545,216.96 and 239,997.84 is: 331,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,127.30 : 545,216.96 = 239,997.84 : x
  2. Step 2: Convert to fraction form
    395,127.30/545,216.96 = 239,997.84/x
  3. Step 3: Cross multiply
    395,127.30x = 545,216.96 × 239,997.84
  4. Step 4: Simplify right side
    395,127.30x = 130,850,892,731.37
  5. Step 5: Solve for x
    x = 130,850,892,731.37/395,127.30
  6. Step 6: Final answer
    x = 331,161.36

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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.