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Finding the Fourth Proportional to 305,950.22, 420,713.97 and 265,593.38

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Solution

The fourth proportional to 305,950.22, 420,713.97 and 265,593.38 is: 365,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,950.22 : 420,713.97 = 265,593.38 : x
  2. Step 2: Convert to fraction form
    305,950.22/420,713.97 = 265,593.38/x
  3. Step 3: Cross multiply
    305,950.22x = 420,713.97 × 265,593.38
  4. Step 4: Simplify right side
    305,950.22x = 111,738,845,305.52
  5. Step 5: Solve for x
    x = 111,738,845,305.52/305,950.22
  6. Step 6: Final answer
    x = 365,219.04

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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.