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Finding the Fourth Proportional to 474.48, 653.00 and 349.94

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Solution

The fourth proportional to 474.48, 653.00 and 349.94 is: 481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.48 : 653.00 = 349.94 : x
  2. Step 2: Convert to fraction form
    474.48/653.00 = 349.94/x
  3. Step 3: Cross multiply
    474.48x = 653.00 × 349.94
  4. Step 4: Simplify right side
    474.48x = 228,510.70
  5. Step 5: Solve for x
    x = 228,510.70/474.48
  6. Step 6: Final answer
    x = 481.60

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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.