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Finding the Fourth Proportional to 630.52, 945.40 and 245.32

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Solution

The fourth proportional to 630.52, 945.40 and 245.32 is: 367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.52 : 945.40 = 245.32 : x
  2. Step 2: Convert to fraction form
    630.52/945.40 = 245.32/x
  3. Step 3: Cross multiply
    630.52x = 945.40 × 245.32
  4. Step 4: Simplify right side
    630.52x = 231,925.53
  5. Step 5: Solve for x
    x = 231,925.53/630.52
  6. Step 6: Final answer
    x = 367.83

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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.