Home / 330,380.07-455,909.90-187,137.24

Finding the Fourth Proportional to 330,380.07, 455,909.90 and 187,137.24

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Solution

The fourth proportional to 330,380.07, 455,909.90 and 187,137.24 is: 258,241.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,380.07 : 455,909.90 = 187,137.24 : x
  2. Step 2: Convert to fraction form
    330,380.07/455,909.90 = 187,137.24/x
  3. Step 3: Cross multiply
    330,380.07x = 455,909.90 × 187,137.24
  4. Step 4: Simplify right side
    330,380.07x = 85,317,719,438.99
  5. Step 5: Solve for x
    x = 85,317,719,438.99/330,380.07
  6. Step 6: Final answer
    x = 258,241.12

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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.