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Finding the Fourth Proportional to 630.48, 945.69 and 370.65

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Solution

The fourth proportional to 630.48, 945.69 and 370.65 is: 555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.48 : 945.69 = 370.65 : x
  2. Step 2: Convert to fraction form
    630.48/945.69 = 370.65/x
  3. Step 3: Cross multiply
    630.48x = 945.69 × 370.65
  4. Step 4: Simplify right side
    630.48x = 350,520.00
  5. Step 5: Solve for x
    x = 350,520.00/630.48
  6. Step 6: Final answer
    x = 555.96

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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.