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Finding the Fourth Proportional to 419.66, 628.41 and 337.01

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Solution

The fourth proportional to 419.66, 628.41 and 337.01 is: 504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419.66 : 628.41 = 337.01 : x
  2. Step 2: Convert to fraction form
    419.66/628.41 = 337.01/x
  3. Step 3: Cross multiply
    419.66x = 628.41 × 337.01
  4. Step 4: Simplify right side
    419.66x = 211,780.45
  5. Step 5: Solve for x
    x = 211,780.45/419.66
  6. Step 6: Final answer
    x = 504.65

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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.