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Finding the Fourth Proportional to 412.81, 619.33 and 335.58

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Solution

The fourth proportional to 412.81, 619.33 and 335.58 is: 503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.81 : 619.33 = 335.58 : x
  2. Step 2: Convert to fraction form
    412.81/619.33 = 335.58/x
  3. Step 3: Cross multiply
    412.81x = 619.33 × 335.58
  4. Step 4: Simplify right side
    412.81x = 207,835.12
  5. Step 5: Solve for x
    x = 207,835.12/412.81
  6. Step 6: Final answer
    x = 503.46

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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.