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Finding the Fourth Proportional to 320,503.80, 480,834.42 and 110,144.76

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Solution

The fourth proportional to 320,503.80, 480,834.42 and 110,144.76 is: 165,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,503.80 : 480,834.42 = 110,144.76 : x
  2. Step 2: Convert to fraction form
    320,503.80/480,834.42 = 110,144.76/x
  3. Step 3: Cross multiply
    320,503.80x = 480,834.42 × 110,144.76
  4. Step 4: Simplify right side
    320,503.80x = 52,961,391,790.64
  5. Step 5: Solve for x
    x = 52,961,391,790.64/320,503.80
  6. Step 6: Final answer
    x = 165,244.19

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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.