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Finding the Fourth Proportional to 425.42, 586.74 and 250.76

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Solution

The fourth proportional to 425.42, 586.74 and 250.76 is: 345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.42 : 586.74 = 250.76 : x
  2. Step 2: Convert to fraction form
    425.42/586.74 = 250.76/x
  3. Step 3: Cross multiply
    425.42x = 586.74 × 250.76
  4. Step 4: Simplify right side
    425.42x = 147,133.33
  5. Step 5: Solve for x
    x = 147,133.33/425.42
  6. Step 6: Final answer
    x = 345.86

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Find fourth proportional to 212.71, 293.37 and 125.38
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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.