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Finding the Fourth Proportional to 472.00, 651.02 and 285.41

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Solution

The fourth proportional to 472.00, 651.02 and 285.41 is: 393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.00 : 651.02 = 285.41 : x
  2. Step 2: Convert to fraction form
    472.00/651.02 = 285.41/x
  3. Step 3: Cross multiply
    472.00x = 651.02 × 285.41
  4. Step 4: Simplify right side
    472.00x = 185,802.94
  5. Step 5: Solve for x
    x = 185,802.94/472.00
  6. Step 6: Final answer
    x = 393.65

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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.