Home / 394,985.58-545,145.30-242,108.82

Finding the Fourth Proportional to 394,985.58, 545,145.30 and 242,108.82

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Solution

The fourth proportional to 394,985.58, 545,145.30 and 242,108.82 is: 334,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,985.58 : 545,145.30 = 242,108.82 : x
  2. Step 2: Convert to fraction form
    394,985.58/545,145.30 = 242,108.82/x
  3. Step 3: Cross multiply
    394,985.58x = 545,145.30 × 242,108.82
  4. Step 4: Simplify right side
    394,985.58x = 131,984,485,311.55
  5. Step 5: Solve for x
    x = 131,984,485,311.55/394,985.58
  6. Step 6: Final answer
    x = 334,150.14

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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.