Home / 320,821.12-481,214.08-110,454.40

Finding the Fourth Proportional to 320,821.12, 481,214.08 and 110,454.40

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Solution

The fourth proportional to 320,821.12, 481,214.08 and 110,454.40 is: 165,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,821.12 : 481,214.08 = 110,454.40 : x
  2. Step 2: Convert to fraction form
    320,821.12/481,214.08 = 110,454.40/x
  3. Step 3: Cross multiply
    320,821.12x = 481,214.08 × 110,454.40
  4. Step 4: Simplify right side
    320,821.12x = 53,152,212,477.95
  5. Step 5: Solve for x
    x = 53,152,212,477.95/320,821.12
  6. Step 6: Final answer
    x = 165,675.54

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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.