Home / 280,108.02-419,965.22-102,591.96

Finding the Fourth Proportional to 280,108.02, 419,965.22 and 102,591.96

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Solution

The fourth proportional to 280,108.02, 419,965.22 and 102,591.96 is: 153,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,108.02 : 419,965.22 = 102,591.96 : x
  2. Step 2: Convert to fraction form
    280,108.02/419,965.22 = 102,591.96/x
  3. Step 3: Cross multiply
    280,108.02x = 419,965.22 × 102,591.96
  4. Step 4: Simplify right side
    280,108.02x = 43,085,054,538.67
  5. Step 5: Solve for x
    x = 43,085,054,538.67/280,108.02
  6. Step 6: Final answer
    x = 153,815.85

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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.