Home / 306,981.91-423,635.70-177,945.27

Finding the Fourth Proportional to 306,981.91, 423,635.70 and 177,945.27

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Solution

The fourth proportional to 306,981.91, 423,635.70 and 177,945.27 is: 245,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,981.91 : 423,635.70 = 177,945.27 : x
  2. Step 2: Convert to fraction form
    306,981.91/423,635.70 = 177,945.27/x
  3. Step 3: Cross multiply
    306,981.91x = 423,635.70 × 177,945.27
  4. Step 4: Simplify right side
    306,981.91x = 75,383,969,018.14
  5. Step 5: Solve for x
    x = 75,383,969,018.14/306,981.91
  6. Step 6: Final answer
    x = 245,564.86

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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.