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Finding the Fourth Proportional to 425.84, 637.08 and 233.60

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Solution

The fourth proportional to 425.84, 637.08 and 233.60 is: 349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.84 : 637.08 = 233.60 : x
  2. Step 2: Convert to fraction form
    425.84/637.08 = 233.60/x
  3. Step 3: Cross multiply
    425.84x = 637.08 × 233.60
  4. Step 4: Simplify right side
    425.84x = 148,821.89
  5. Step 5: Solve for x
    x = 148,821.89/425.84
  6. Step 6: Final answer
    x = 349.48

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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.