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Finding the Fourth Proportional to 305,791.80, 458,687.70 and 302,839.35

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Solution

The fourth proportional to 305,791.80, 458,687.70 and 302,839.35 is: 454,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,791.80 : 458,687.70 = 302,839.35 : x
  2. Step 2: Convert to fraction form
    305,791.80/458,687.70 = 302,839.35/x
  3. Step 3: Cross multiply
    305,791.80x = 458,687.70 × 302,839.35
  4. Step 4: Simplify right side
    305,791.80x = 138,908,684,921.00
  5. Step 5: Solve for x
    x = 138,908,684,921.00/305,791.80
  6. Step 6: Final answer
    x = 454,259.03

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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.