Home / 320,121.05-479,800.06-149,113.31

Finding the Fourth Proportional to 320,121.05, 479,800.06 and 149,113.31

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Solution

The fourth proportional to 320,121.05, 479,800.06 and 149,113.31 is: 223,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,121.05 : 479,800.06 = 149,113.31 : x
  2. Step 2: Convert to fraction form
    320,121.05/479,800.06 = 149,113.31/x
  3. Step 3: Cross multiply
    320,121.05x = 479,800.06 × 149,113.31
  4. Step 4: Simplify right side
    320,121.05x = 71,544,573,885.30
  5. Step 5: Solve for x
    x = 71,544,573,885.30/320,121.05
  6. Step 6: Final answer
    x = 223,492.25

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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.