Home / 320,999.52-481,319.16-219,911.76

Finding the Fourth Proportional to 320,999.52, 481,319.16 and 219,911.76

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Solution

The fourth proportional to 320,999.52, 481,319.16 and 219,911.76 is: 329,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,999.52 : 481,319.16 = 219,911.76 : x
  2. Step 2: Convert to fraction form
    320,999.52/481,319.16 = 219,911.76/x
  3. Step 3: Cross multiply
    320,999.52x = 481,319.16 × 219,911.76
  4. Step 4: Simplify right side
    320,999.52x = 105,847,743,597.32
  5. Step 5: Solve for x
    x = 105,847,743,597.32/320,999.52
  6. Step 6: Final answer
    x = 329,744.24

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1.5x scale

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.