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Finding the Fourth Proportional to 254,791.81, 351,591.80 and 149,999.13

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Solution

The fourth proportional to 254,791.81, 351,591.80 and 149,999.13 is: 206,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,791.81 : 351,591.80 = 149,999.13 : x
  2. Step 2: Convert to fraction form
    254,791.81/351,591.80 = 149,999.13/x
  3. Step 3: Cross multiply
    254,791.81x = 351,591.80 × 149,999.13
  4. Step 4: Simplify right side
    254,791.81x = 52,738,462,279.55
  5. Step 5: Solve for x
    x = 52,738,462,279.55/254,791.81
  6. Step 6: Final answer
    x = 206,986.49

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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.