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Finding the Fourth Proportional to 472.84, 709.29 and 164.66

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Solution

The fourth proportional to 472.84, 709.29 and 164.66 is: 246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.84 : 709.29 = 164.66 : x
  2. Step 2: Convert to fraction form
    472.84/709.29 = 164.66/x
  3. Step 3: Cross multiply
    472.84x = 709.29 × 164.66
  4. Step 4: Simplify right side
    472.84x = 116,788.14
  5. Step 5: Solve for x
    x = 116,788.14/472.84
  6. Step 6: Final answer
    x = 246.99

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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.