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Finding the Fourth Proportional to 425.07, 586.61 and 250.43

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Solution

The fourth proportional to 425.07, 586.61 and 250.43 is: 345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.07 : 586.61 = 250.43 : x
  2. Step 2: Convert to fraction form
    425.07/586.61 = 250.43/x
  3. Step 3: Cross multiply
    425.07x = 586.61 × 250.43
  4. Step 4: Simplify right side
    425.07x = 146,900.56
  5. Step 5: Solve for x
    x = 146,900.56/425.07
  6. Step 6: Final answer
    x = 345.59

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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.