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Finding the Fourth Proportional to 250,520.27, 345,739.73 and 137,364.89

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Solution

The fourth proportional to 250,520.27, 345,739.73 and 137,364.89 is: 189,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,520.27 : 345,739.73 = 137,364.89 : x
  2. Step 2: Convert to fraction form
    250,520.27/345,739.73 = 137,364.89/x
  3. Step 3: Cross multiply
    250,520.27x = 345,739.73 × 137,364.89
  4. Step 4: Simplify right side
    250,520.27x = 47,492,497,564.56
  5. Step 5: Solve for x
    x = 47,492,497,564.56/250,520.27
  6. Step 6: Final answer
    x = 189,575.47

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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.