Home / 402,183.06-555,019.32-220,911.75

Finding the Fourth Proportional to 402,183.06, 555,019.32 and 220,911.75

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Solution

The fourth proportional to 402,183.06, 555,019.32 and 220,911.75 is: 304,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,183.06 : 555,019.32 = 220,911.75 : x
  2. Step 2: Convert to fraction form
    402,183.06/555,019.32 = 220,911.75/x
  3. Step 3: Cross multiply
    402,183.06x = 555,019.32 × 220,911.75
  4. Step 4: Simplify right side
    402,183.06x = 122,610,289,265.01
  5. Step 5: Solve for x
    x = 122,610,289,265.01/402,183.06
  6. Step 6: Final answer
    x = 304,861.89

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1.5x scale

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.