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Finding the Fourth Proportional to 472.01, 651.41 and 272.88

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Solution

The fourth proportional to 472.01, 651.41 and 272.88 is: 376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.01 : 651.41 = 272.88 : x
  2. Step 2: Convert to fraction form
    472.01/651.41 = 272.88/x
  3. Step 3: Cross multiply
    472.01x = 651.41 × 272.88
  4. Step 4: Simplify right side
    472.01x = 177,756.76
  5. Step 5: Solve for x
    x = 177,756.76/472.01
  6. Step 6: Final answer
    x = 376.60

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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.