Home / 305,021.16-420,944.70-175,911.62

Finding the Fourth Proportional to 305,021.16, 420,944.70 and 175,911.62

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Solution

The fourth proportional to 305,021.16, 420,944.70 and 175,911.62 is: 242,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,021.16 : 420,944.70 = 175,911.62 : x
  2. Step 2: Convert to fraction form
    305,021.16/420,944.70 = 175,911.62/x
  3. Step 3: Cross multiply
    305,021.16x = 420,944.70 × 175,911.62
  4. Step 4: Simplify right side
    305,021.16x = 74,049,064,107.41
  5. Step 5: Solve for x
    x = 74,049,064,107.41/305,021.16
  6. Step 6: Final answer
    x = 242,766.97

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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.